Merge branch 'current' into goodnetnick-shloginotp-T4754

96 files changed, 3648 insertions, 1199 deletions

diff --git a/src/conf_mode/container.py b/src/conf_mode/container.py
index ac3dc536b..8efeaed54 100755
--- a/src/conf_mode/container.py
+++ b/src/conf_mode/container.py
@@ -40,20 +40,7 @@ airbag.enable()
 
 config_containers_registry = '/etc/containers/registries.conf'
 config_containers_storage = '/etc/containers/storage.conf'
-
-def _run_rerun(container_cmd):
-    counter = 0
-    while True:
-        if counter >= 10:
-            break
-        try:
-            _cmd(container_cmd)
-            break
-        except:
-            counter = counter +1
-            sleep(0.5)
-
-    return None
+systemd_unit_path = '/run/systemd/system'
 
 def _cmd(command):
     if os.path.exists('/tmp/vyos.container.debug'):
@@ -122,7 +109,7 @@ def verify(container):
             # of image upgrade and deletion.
             image = container_config['image']
             if run(f'podman image exists {image}') != 0:
-                Warning(f'Image "{image}" used in contianer "{name}" does not exist '\
+                Warning(f'Image "{image}" used in container "{name}" does not exist '\
                         f'locally. Please use "add container image {image}" to add it '\
                         f'to the system! Container "{name}" will not be started!')
 
@@ -136,9 +123,6 @@ def verify(container):
                     raise ConfigError(f'Container network "{network_name}" does not exist!')
 
                 if 'address' in container_config['network'][network_name]:
-                    if 'network' not in container_config:
-                        raise ConfigError(f'Can not use "address" without "network" for container "{name}"!')
-
                     address = container_config['network'][network_name]['address']
                     network = None
                     if is_ipv4(address):
@@ -220,6 +204,72 @@ def verify(container):
 
     return None
 
+def generate_run_arguments(name, container_config):
+    image = container_config['image']
+    memory = container_config['memory']
+    shared_memory = container_config['shared_memory']
+    restart = container_config['restart']
+
+    # Add capability options. Should be in uppercase
+    cap_add = ''
+    if 'cap_add' in container_config:
+        for c in container_config['cap_add']:
+            c = c.upper()
+            c = c.replace('-', '_')
+            cap_add += f' --cap-add={c}'
+
+    # Add a host device to the container /dev/x:/dev/x
+    device = ''
+    if 'device' in container_config:
+        for dev, dev_config in container_config['device'].items():
+            source_dev = dev_config['source']
+            dest_dev = dev_config['destination']
+            device += f' --device={source_dev}:{dest_dev}'
+
+    # Check/set environment options "-e foo=bar"
+    env_opt = ''
+    if 'environment' in container_config:
+        for k, v in container_config['environment'].items():
+            env_opt += f" -e \"{k}={v['value']}\""
+
+    # Publish ports
+    port = ''
+    if 'port' in container_config:
+        protocol = ''
+        for portmap in container_config['port']:
+            if 'protocol' in container_config['port'][portmap]:
+                protocol = container_config['port'][portmap]['protocol']
+                protocol = f'/{protocol}'
+            else:
+                protocol = '/tcp'
+            sport = container_config['port'][portmap]['source']
+            dport = container_config['port'][portmap]['destination']
+            port += f' -p {sport}:{dport}{protocol}'
+
+    # Bind volume
+    volume = ''
+    if 'volume' in container_config:
+        for vol, vol_config in container_config['volume'].items():
+            svol = vol_config['source']
+            dvol = vol_config['destination']
+            volume += f' -v {svol}:{dvol}'
+
+    container_base_cmd = f'--detach --interactive --tty --replace {cap_add} ' \
+                         f'--memory {memory}m --shm-size {shared_memory}m --memory-swap 0 --restart {restart} ' \
+                         f'--name {name} {device} {port} {volume} {env_opt}'
+
+    if 'allow_host_networks' in container_config:
+        return f'{container_base_cmd} --net host {image}'
+
+    ip_param = ''
+    networks = ",".join(container_config['network'])
+    for network in container_config['network']:
+        if 'address' in container_config['network'][network]:
+            address = container_config['network'][network]['address']
+            ip_param = f'--ip {address}'
+
+    return f'{container_base_cmd} --net {networks} {ip_param} {image}'
+
 def generate(container):
     # bail out early - looks like removal from running config
     if not container:
@@ -263,6 +313,15 @@ def generate(container):
     render(config_containers_registry, 'container/registries.conf.j2', container)
     render(config_containers_storage, 'container/storage.conf.j2', container)
 
+    if 'name' in container:
+        for name, container_config in container['name'].items():
+            if 'disable' in container_config:
+                continue
+
+            file_path = os.path.join(systemd_unit_path, f'vyos-container-{name}.service')
+            run_args = generate_run_arguments(name, container_config)
+            render(file_path, 'container/systemd-unit.j2', {'name': name, 'run_args': run_args})
+
     return None
 
 def apply(container):
@@ -270,8 +329,12 @@ def apply(container):
     # Option "--force" allows to delete containers with any status
     if 'container_remove' in container:
         for name in container['container_remove']:
-            call(f'podman stop --time 3 {name}')
-            call(f'podman rm --force {name}')
+            file_path = os.path.join(systemd_unit_path, f'vyos-container-{name}.service')
+            call(f'systemctl stop vyos-container-{name}.service')
+            if os.path.exists(file_path):
+                os.unlink(file_path)
+
+    call('systemctl daemon-reload')
 
     # Delete old networks if needed
     if 'network_remove' in container:
@@ -282,6 +345,7 @@ def apply(container):
                 os.unlink(tmp)
 
     # Add container
+    disabled_new = False
     if 'name' in container:
         for name, container_config in container['name'].items():
             image = container_config['image']
@@ -295,70 +359,17 @@ def apply(container):
                 # check if there is a container by that name running
                 tmp = _cmd('podman ps -a --format "{{.Names}}"')
                 if name in tmp:
-                    _cmd(f'podman stop --time 3 {name}')
-                    _cmd(f'podman rm --force {name}')
+                    file_path = os.path.join(systemd_unit_path, f'vyos-container-{name}.service')
+                    call(f'systemctl stop vyos-container-{name}.service')
+                    if os.path.exists(file_path):
+                        disabled_new = True
+                        os.unlink(file_path)
                 continue
 
-            memory = container_config['memory']
-            restart = container_config['restart']
-
-            # Add capability options. Should be in uppercase
-            cap_add = ''
-            if 'cap_add' in container_config:
-                for c in container_config['cap_add']:
-                    c = c.upper()
-                    c = c.replace('-', '_')
-                    cap_add += f' --cap-add={c}'
-
-            # Add a host device to the container /dev/x:/dev/x
-            device = ''
-            if 'device' in container_config:
-                for dev, dev_config in container_config['device'].items():
-                    source_dev = dev_config['source']
-                    dest_dev = dev_config['destination']
-                    device += f' --device={source_dev}:{dest_dev}'
-
-            # Check/set environment options "-e foo=bar"
-            env_opt = ''
-            if 'environment' in container_config:
-                for k, v in container_config['environment'].items():
-                    env_opt += f" -e \"{k}={v['value']}\""
-
-            # Publish ports
-            port = ''
-            if 'port' in container_config:
-                protocol = ''
-                for portmap in container_config['port']:
-                    if 'protocol' in container_config['port'][portmap]:
-                        protocol = container_config['port'][portmap]['protocol']
-                        protocol = f'/{protocol}'
-                    else:
-                        protocol = '/tcp'
-                    sport = container_config['port'][portmap]['source']
-                    dport = container_config['port'][portmap]['destination']
-                    port += f' -p {sport}:{dport}{protocol}'
-
-            # Bind volume
-            volume = ''
-            if 'volume' in container_config:
-                for vol, vol_config in container_config['volume'].items():
-                    svol = vol_config['source']
-                    dvol = vol_config['destination']
-                    volume += f' -v {svol}:{dvol}'
-
-            container_base_cmd = f'podman run --detach --interactive --tty --replace {cap_add} ' \
-                                 f'--memory {memory}m --memory-swap 0 --restart {restart} ' \
-                                 f'--name {name} {device} {port} {volume} {env_opt}'
-            if 'allow_host_networks' in container_config:
-                _run_rerun(f'{container_base_cmd} --net host {image}')
-            else:
-                for network in container_config['network']:
-                    ipparam = ''
-                    if 'address' in container_config['network'][network]:
-                        address = container_config['network'][network]['address']
-                        ipparam = f'--ip {address}'
+            cmd(f'systemctl restart vyos-container-{name}.service')
 
-                    _run_rerun(f'{container_base_cmd} --net {network} {ipparam} {image}')
+    if disabled_new:
+        call('systemctl daemon-reload')
 
     return None
 
diff --git a/src/conf_mode/firewall.py b/src/conf_mode/firewall.py
index cbd9cbe90..f68acfe02 100755
--- a/src/conf_mode/firewall.py
+++ b/src/conf_mode/firewall.py
@@ -26,13 +26,10 @@ from vyos.config import Config
 from vyos.configdict import dict_merge
 from vyos.configdict import node_changed
 from vyos.configdiff import get_config_diff, Diff
+from vyos.configdep import set_dependents, call_dependents
 # from vyos.configverify import verify_interface_exists
+from vyos.firewall import fqdn_config_parse
 from vyos.firewall import geoip_update
-from vyos.firewall import get_ips_domains_dict
-from vyos.firewall import nft_add_set_elements
-from vyos.firewall import nft_flush_set
-from vyos.firewall import nft_init_set
-from vyos.firewall import nft_update_set_elements
 from vyos.template import render
 from vyos.util import call
 from vyos.util import cmd
@@ -45,7 +42,8 @@ from vyos import ConfigError
 from vyos import airbag
 airbag.enable()
 
-policy_route_conf_script = '/usr/libexec/vyos/conf_mode/policy-route.py'
+nat_conf_script = 'nat.py'
+policy_route_conf_script = 'policy-route.py'
 
 nftables_conf = '/run/nftables.conf'
 
@@ -162,7 +160,10 @@ def get_config(config=None):
         for zone in firewall['zone']:
             firewall['zone'][zone] = dict_merge(default_values, firewall['zone'][zone])
 
-    firewall['policy_resync'] = bool('group' in firewall or node_changed(conf, base + ['group']))
+    firewall['group_resync'] = bool('group' in firewall or node_changed(conf, base + ['group']))
+    if firewall['group_resync']:
+        # Update nat and policy-route as firewall groups were updated
+        set_dependents('group_resync', conf)
 
     if 'config_trap' in firewall and firewall['config_trap'] == 'enable':
         diff = get_config_diff(conf)
@@ -173,6 +174,8 @@ def get_config(config=None):
 
     firewall['geoip_updated'] = geoip_updated(conf, firewall)
 
+    fqdn_config_parse(firewall)
+
     return firewall
 
 def verify_rule(firewall, rule_conf, ipv6):
@@ -232,29 +235,28 @@ def verify_rule(firewall, rule_conf, ipv6):
         if side in rule_conf:
             side_conf = rule_conf[side]
 
-            if dict_search_args(side_conf, 'geoip', 'country_code'):
-                if 'address' in side_conf:
-                    raise ConfigError('Address and GeoIP cannot both be defined')
-
-                if dict_search_args(side_conf, 'group', 'address_group'):
-                    raise ConfigError('Address-group and GeoIP cannot both be defined')
-
-                if dict_search_args(side_conf, 'group', 'network_group'):
-                    raise ConfigError('Network-group and GeoIP cannot both be defined')
+            if len({'address', 'fqdn', 'geoip'} & set(side_conf)) > 1:
+                raise ConfigError('Only one of address, fqdn or geoip can be specified')
 
             if 'group' in side_conf:
-                if {'address_group', 'network_group'} <= set(side_conf['group']):
-                    raise ConfigError('Only one address-group or network-group can be specified')
+                if len({'address_group', 'network_group', 'domain_group'} & set(side_conf['group'])) > 1:
+                    raise ConfigError('Only one address-group, network-group or domain-group can be specified')
 
                 for group in valid_groups:
                     if group in side_conf['group']:
                         group_name = side_conf['group'][group]
 
+                        fw_group = f'ipv6_{group}' if ipv6 and group in ['address_group', 'network_group'] else group
+                        error_group = fw_group.replace("_", "-")
+
+                        if group in ['address_group', 'network_group', 'domain_group']:
+                            types = [t for t in ['address', 'fqdn', 'geoip'] if t in side_conf]
+                            if types:
+                                raise ConfigError(f'{error_group} and {types[0]} cannot both be defined')
+
                         if group_name and group_name[0] == '!':
                             group_name = group_name[1:]
 
-                        fw_group = f'ipv6_{group}' if ipv6 and group in ['address_group', 'network_group'] else group
-                        error_group = fw_group.replace("_", "-")
                         group_obj = dict_search_args(firewall, 'group', fw_group, group_name)
 
                         if group_obj is None:
@@ -274,6 +276,8 @@ def verify_nested_group(group_name, group, groups, seen):
     if 'include' not in group:
         return
 
+    seen.append(group_name)
+
     for g in group['include']:
         if g not in groups:
             raise ConfigError(f'Nested group "{g}" does not exist')
@@ -281,8 +285,6 @@ def verify_nested_group(group_name, group, groups, seen):
         if g in seen:
             raise ConfigError(f'Group "{group_name}" has a circular reference')
 
-        seen.append(g)
-
         if 'include' in groups[g]:
             verify_nested_group(g, groups[g], groups, seen)
 
@@ -466,42 +468,23 @@ def post_apply_trap(firewall):
 
                 cmd(base_cmd + ' '.join(objects))
 
-def resync_policy_route():
-    # Update policy route as firewall groups were updated
-    tmp, out = rc_cmd(policy_route_conf_script)
-    if tmp > 0:
-        Warning(f'Failed to re-apply policy route configuration! {out}')
-
 def apply(firewall):
     install_result, output = rc_cmd(f'nft -f {nftables_conf}')
     if install_result == 1:
         raise ConfigError(f'Failed to apply firewall: {output}')
 
-    # set firewall group domain-group xxx
-    if 'group' in firewall:
-        if 'domain_group' in firewall['group']:
-            # T970 Enable a resolver (systemd daemon) that checks
-            # domain-group addresses and update entries for domains by timeout
-            # If router loaded without internet connection or for synchronization
-            call('systemctl restart vyos-domain-group-resolve.service')
-            for group, group_config in firewall['group']['domain_group'].items():
-                domains = []
-                if group_config.get('address') is not None:
-                    for address in group_config.get('address'):
-                        domains.append(address)
-                # Add elements to domain-group, try to resolve domain => ip
-                # and add elements to nft set
-                ip_dict = get_ips_domains_dict(domains)
-                elements = sum(ip_dict.values(), [])
-                nft_init_set(f'D_{group}')
-                nft_add_set_elements(f'D_{group}', elements)
-        else:
-            call('systemctl stop vyos-domain-group-resolve.service')
-
     apply_sysfs(firewall)
 
-    if firewall['policy_resync']:
-        resync_policy_route()
+    if firewall['group_resync']:
+        call_dependents()
+
+    # T970 Enable a resolver (systemd daemon) that checks
+    # domain-group/fqdn addresses and update entries for domains by timeout
+    # If router loaded without internet connection or for synchronization
+    domain_action = 'stop'
+    if dict_search_args(firewall, 'group', 'domain_group') or firewall['ip_fqdn'] or firewall['ip6_fqdn']:
+        domain_action = 'restart'
+    call(f'systemctl {domain_action} vyos-domain-resolver.service')
 
     if firewall['geoip_updated']:
         # Call helper script to Update set contents
diff --git a/src/conf_mode/http-api.py b/src/conf_mode/http-api.py
index c196e272b..6328294c1 100755
--- a/src/conf_mode/http-api.py
+++ b/src/conf_mode/http-api.py
@@ -25,6 +25,7 @@ import vyos.defaults
 
 from vyos.config import Config
 from vyos.configdict import dict_merge
+from vyos.configdep import set_dependents, call_dependents
 from vyos.template import render
 from vyos.util import cmd
 from vyos.util import call
@@ -61,6 +62,11 @@ def get_config(config=None):
     else:
         conf = Config()
 
+    # reset on creation/deletion of 'api' node
+    https_base = ['service', 'https']
+    if conf.exists(https_base):
+        set_dependents("https", conf)
+
     base = ['service', 'https', 'api']
     if not conf.exists(base):
         return None
@@ -86,7 +92,7 @@ def get_config(config=None):
     if 'api_keys' in api_dict:
         keys_added = True
 
-    if 'gql' in api_dict:
+    if 'graphql' in api_dict:
         api_dict = dict_merge(defaults(base), api_dict)
 
     http_api.update(api_dict)
@@ -132,7 +138,7 @@ def apply(http_api):
     # Let uvicorn settle before restarting Nginx
     sleep(1)
 
-    cmd(f'{vyos_conf_scripts_dir}/https.py', raising=ConfigError)
+    call_dependents()
 
 if __name__ == '__main__':
     try:
diff --git a/src/conf_mode/interfaces-bonding.py b/src/conf_mode/interfaces-bonding.py
index 21cf204fc..b883ebef2 100755
--- a/src/conf_mode/interfaces-bonding.py
+++ b/src/conf_mode/interfaces-bonding.py
@@ -116,7 +116,7 @@ def get_config(config=None):
     if dict_search('member.interface', bond):
         for interface, interface_config in bond['member']['interface'].items():
             # Check if member interface is a new member
-            if not conf.exists_effective(['member', 'interface', interface]):
+            if not conf.exists_effective(base + [ifname, 'member', 'interface', interface]):
                 bond['shutdown_required'] = {}
 
             # Check if member interface is disabled
diff --git a/src/conf_mode/interfaces-ethernet.py b/src/conf_mode/interfaces-ethernet.py
index e02841831..b49c945cd 100755
--- a/src/conf_mode/interfaces-ethernet.py
+++ b/src/conf_mode/interfaces-ethernet.py
@@ -175,7 +175,7 @@ def generate(ethernet):
 
         loaded_pki_cert = load_certificate(pki_cert['certificate'])
         loaded_ca_certs = {load_certificate(c['certificate'])
-            for c in ethernet['pki']['ca'].values()}
+            for c in ethernet['pki']['ca'].values()} if 'ca' in ethernet['pki'] else {}
 
         cert_full_chain = find_chain(loaded_pki_cert, loaded_ca_certs)
 
diff --git a/src/conf_mode/interfaces-pppoe.py b/src/conf_mode/interfaces-pppoe.py
index e2fdc7a42..ee4defa0d 100755
--- a/src/conf_mode/interfaces-pppoe.py
+++ b/src/conf_mode/interfaces-pppoe.py
@@ -23,7 +23,6 @@ from netifaces import interfaces
 from vyos.config import Config
 from vyos.configdict import get_interface_dict
 from vyos.configdict import is_node_changed
-from vyos.configdict import leaf_node_changed
 from vyos.configdict import get_pppoe_interfaces
 from vyos.configverify import verify_authentication
 from vyos.configverify import verify_source_interface
diff --git a/src/conf_mode/interfaces-sstpc.py b/src/conf_mode/interfaces-sstpc.py
new file mode 100755
index 000000000..6b8094c51
--- /dev/null
+++ b/src/conf_mode/interfaces-sstpc.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+from sys import exit
+
+from vyos.config import Config
+from vyos.configdict import get_interface_dict
+from vyos.configdict import is_node_changed
+from vyos.configverify import verify_authentication
+from vyos.configverify import verify_vrf
+from vyos.ifconfig import SSTPCIf
+from vyos.pki import encode_certificate
+from vyos.pki import find_chain
+from vyos.pki import load_certificate
+from vyos.template import render
+from vyos.util import call
+from vyos.util import dict_search
+from vyos.util import is_systemd_service_running
+from vyos.util import write_file
+from vyos import ConfigError
+from vyos import airbag
+airbag.enable()
+
+def get_config(config=None):
+    """
+    Retrive CLI config as dictionary. Dictionary can never be empty, as at least the
+    interface name will be added or a deleted flag
+    """
+    if config:
+        conf = config
+    else:
+        conf = Config()
+    base = ['interfaces', 'sstpc']
+    ifname, sstpc = get_interface_dict(conf, base)
+
+    # We should only terminate the SSTP client session if critical parameters
+    # change. All parameters that can be changed on-the-fly (like interface
+    # description) should not lead to a reconnect!
+    for options in ['authentication', 'no_peer_dns', 'no_default_route',
+                    'server', 'ssl']:
+        if is_node_changed(conf, base + [ifname, options]):
+            sstpc.update({'shutdown_required': {}})
+            # bail out early - no need to further process other nodes
+            break
+
+    # Load PKI certificates for later processing
+    sstpc['pki'] = conf.get_config_dict(['pki'], key_mangling=('-', '_'),
+                                        get_first_key=True,
+                                        no_tag_node_value_mangle=True)
+    return sstpc
+
+def verify(sstpc):
+    if 'deleted' in sstpc:
+        return None
+
+    verify_authentication(sstpc)
+    verify_vrf(sstpc)
+
+    if dict_search('ssl.ca_certificate', sstpc) == None:
+        raise ConfigError('Missing mandatory CA certificate!')
+
+    return None
+
+def generate(sstpc):
+    ifname = sstpc['ifname']
+    config_sstpc = f'/etc/ppp/peers/{ifname}'
+
+    sstpc['ca_file_path'] = f'/run/sstpc/{ifname}_ca-cert.pem'
+
+    if 'deleted' in sstpc:
+        for file in [sstpc['ca_file_path'], config_sstpc]:
+            if os.path.exists(file):
+                os.unlink(file)
+        return None
+
+    ca_name = sstpc['ssl']['ca_certificate']
+    pki_ca_cert = sstpc['pki']['ca'][ca_name]
+
+    loaded_ca_cert = load_certificate(pki_ca_cert['certificate'])
+    loaded_ca_certs = {load_certificate(c['certificate'])
+            for c in sstpc['pki']['ca'].values()} if 'ca' in sstpc['pki'] else {}
+
+    ca_full_chain = find_chain(loaded_ca_cert, loaded_ca_certs)
+
+    write_file(sstpc['ca_file_path'], '\n'.join(encode_certificate(c) for c in ca_full_chain))
+    render(config_sstpc, 'sstp-client/peer.j2', sstpc, permission=0o640)
+
+    return None
+
+def apply(sstpc):
+    ifname = sstpc['ifname']
+    if 'deleted' in sstpc or 'disable' in sstpc:
+        if os.path.isdir(f'/sys/class/net/{ifname}'):
+            p = SSTPCIf(ifname)
+            p.remove()
+        call(f'systemctl stop ppp@{ifname}.service')
+        return None
+
+    # reconnect should only be necessary when specific options change,
+    # like server, authentication ... (see get_config() for details)
+    if ((not is_systemd_service_running(f'ppp@{ifname}.service')) or
+        'shutdown_required' in sstpc):
+
+        # cleanup system (e.g. FRR routes first)
+        if os.path.isdir(f'/sys/class/net/{ifname}'):
+            p = SSTPCIf(ifname)
+            p.remove()
+
+        call(f'systemctl restart ppp@{ifname}.service')
+        # When interface comes "live" a hook is called:
+        # /etc/ppp/ip-up.d/96-vyos-sstpc-callback
+        # which triggers SSTPCIf.update()
+    else:
+        if os.path.isdir(f'/sys/class/net/{ifname}'):
+            p = SSTPCIf(ifname)
+            p.update(sstpc)
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)
diff --git a/src/conf_mode/interfaces-virtual-ethernet.py b/src/conf_mode/interfaces-virtual-ethernet.py
new file mode 100755
index 000000000..8efe89c41
--- /dev/null
+++ b/src/conf_mode/interfaces-virtual-ethernet.py
@@ -0,0 +1,114 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from sys import exit
+
+from netifaces import interfaces
+from vyos import ConfigError
+from vyos import airbag
+from vyos.config import Config
+from vyos.configdict import get_interface_dict
+from vyos.configverify import verify_address
+from vyos.configverify import verify_bridge_delete
+from vyos.configverify import verify_vrf
+from vyos.ifconfig import VethIf
+
+airbag.enable()
+
+def get_config(config=None):
+    """
+    Retrive CLI config as dictionary. Dictionary can never be empty, as at
+    least the interface name will be added or a deleted flag
+    """
+    if config:
+        conf = config
+    else:
+        conf = Config()
+    base = ['interfaces', 'virtual-ethernet']
+    ifname, veth = get_interface_dict(conf, base)
+
+    # We need to know all other veth related interfaces as veth requires a 1:1
+    # mapping for the peer-names. The Linux kernel automatically creates both
+    # interfaces, the local one and the peer-name, but VyOS also needs a peer
+    # interfaces configrued on the CLI so we can assign proper IP addresses etc.
+    veth['other_interfaces'] = conf.get_config_dict(base, key_mangling=('-', '_'),
+                                     get_first_key=True, no_tag_node_value_mangle=True)
+
+    return veth
+
+
+def verify(veth):
+    if 'deleted' in veth:
+        verify_bridge_delete(veth)
+        # Prevent to delete veth interface which used for another "vethX peer-name"
+        for iface, iface_config in veth['other_interfaces'].items():
+            if veth['ifname'] in iface_config['peer_name']:
+                ifname = veth['ifname']
+                raise ConfigError(
+                    f'Cannot delete "{ifname}" used for "interface {iface} peer-name"'
+                )
+        return None
+
+    verify_vrf(veth)
+    verify_address(veth)
+
+    if 'peer_name' not in veth:
+        raise ConfigError(f'Remote peer name must be set for "{veth["ifname"]}"!')
+
+    peer_name = veth['peer_name']
+    ifname = veth['ifname']
+
+    if veth['peer_name'] not in veth['other_interfaces']:
+        raise ConfigError(f'Used peer-name "{peer_name}" on interface "{ifname}" ' \
+                          'is not configured!')
+
+    if veth['other_interfaces'][peer_name]['peer_name'] != ifname:
+        raise ConfigError(
+            f'Configuration mismatch between "{ifname}" and "{peer_name}"!')
+
+    if peer_name == ifname:
+        raise ConfigError(
+            f'Peer-name "{peer_name}" cannot be the same as interface "{ifname}"!')
+
+    return None
+
+
+def generate(peth):
+    return None
+
+def apply(veth):
+    # Check if the Veth interface already exists
+    if 'rebuild_required' in veth or 'deleted' in veth:
+        if veth['ifname'] in interfaces():
+            p = VethIf(veth['ifname'])
+            p.remove()
+
+    if 'deleted' not in veth:
+        p = VethIf(**veth)
+        p.update(veth)
+
+    return None
+
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)
diff --git a/src/conf_mode/interfaces-wireguard.py b/src/conf_mode/interfaces-wireguard.py
index 8d738f55e..762bad94f 100755
--- a/src/conf_mode/interfaces-wireguard.py
+++ b/src/conf_mode/interfaces-wireguard.py
@@ -87,6 +87,8 @@ def verify(wireguard):
                                'cannot be used for the interface!')
 
     # run checks on individual configured WireGuard peer
+    public_keys = []
+
     for tmp in wireguard['peer']:
         peer = wireguard['peer'][tmp]
 
@@ -100,6 +102,11 @@ def verify(wireguard):
             raise ConfigError('Both Wireguard port and address must be defined '
                               f'for peer "{tmp}" if either one of them is set!')
 
+        if peer['public_key'] in public_keys:
+            raise ConfigError(f'Duplicate public-key defined on peer "{tmp}"')
+
+        public_keys.append(peer['public_key'])
+
 def apply(wireguard):
     tmp = WireGuardIf(wireguard['ifname'])
     if 'deleted' in wireguard:
diff --git a/src/conf_mode/nat.py b/src/conf_mode/nat.py
index 8b1a5a720..9f8221514 100755
--- a/src/conf_mode/nat.py
+++ b/src/conf_mode/nat.py
@@ -32,6 +32,7 @@ from vyos.util import cmd
 from vyos.util import run
 from vyos.util import check_kmod
 from vyos.util import dict_search
+from vyos.util import dict_search_args
 from vyos.validate import is_addr_assigned
 from vyos.xml import defaults
 from vyos import ConfigError
@@ -47,6 +48,13 @@ else:
 nftables_nat_config = '/run/nftables_nat.conf'
 nftables_static_nat_conf = '/run/nftables_static-nat-rules.nft'
 
+valid_groups = [
+    'address_group',
+    'domain_group',
+    'network_group',
+    'port_group'
+]
+
 def get_handler(json, chain, target):
     """ Get nftable rule handler number of given chain/target combination.
     Handler is required when adding NAT/Conntrack helper targets """
@@ -60,7 +68,7 @@ def get_handler(json, chain, target):
     return None
 
 
-def verify_rule(config, err_msg):
+def verify_rule(config, err_msg, groups_dict):
     """ Common verify steps used for both source and destination NAT """
 
     if (dict_search('translation.port', config) != None or
@@ -78,6 +86,45 @@ def verify_rule(config, err_msg):
                              'statically maps a whole network of addresses onto another\n' \
                              'network of addresses')
 
+    for side in ['destination', 'source']:
+        if side in config:
+            side_conf = config[side]
+
+            if len({'address', 'fqdn'} & set(side_conf)) > 1:
+                raise ConfigError('Only one of address, fqdn or geoip can be specified')
+
+            if 'group' in side_conf:
+                if len({'address_group', 'network_group', 'domain_group'} & set(side_conf['group'])) > 1:
+                    raise ConfigError('Only one address-group, network-group or domain-group can be specified')
+
+                for group in valid_groups:
+                    if group in side_conf['group']:
+                        group_name = side_conf['group'][group]
+                        error_group = group.replace("_", "-")
+
+                        if group in ['address_group', 'network_group', 'domain_group']:
+                            types = [t for t in ['address', 'fqdn'] if t in side_conf]
+                            if types:
+                                raise ConfigError(f'{error_group} and {types[0]} cannot both be defined')
+
+                        if group_name and group_name[0] == '!':
+                            group_name = group_name[1:]
+
+                        group_obj = dict_search_args(groups_dict, group, group_name)
+
+                        if group_obj is None:
+                            raise ConfigError(f'Invalid {error_group} "{group_name}" on firewall rule')
+
+                        if not group_obj:
+                            Warning(f'{error_group} "{group_name}" has no members!')
+
+            if dict_search_args(side_conf, 'group', 'port_group'):
+                if 'protocol' not in config:
+                    raise ConfigError('Protocol must be defined if specifying a port-group')
+
+                if config['protocol'] not in ['tcp', 'udp', 'tcp_udp']:
+                    raise ConfigError('Protocol must be tcp, udp, or tcp_udp when specifying a port-group')
+
 def get_config(config=None):
     if config:
         conf = config
@@ -105,16 +152,20 @@ def get_config(config=None):
     condensed_json = jmespath.search(pattern, nftable_json)
 
     if not conf.exists(base):
-        nat['helper_functions'] = 'remove'
-
-        # Retrieve current table handler positions
-        nat['pre_ct_ignore'] = get_handler(condensed_json, 'PREROUTING', 'VYOS_CT_HELPER')
-        nat['pre_ct_conntrack'] = get_handler(condensed_json, 'PREROUTING', 'NAT_CONNTRACK')
-        nat['out_ct_ignore'] = get_handler(condensed_json, 'OUTPUT', 'VYOS_CT_HELPER')
-        nat['out_ct_conntrack'] = get_handler(condensed_json, 'OUTPUT', 'NAT_CONNTRACK')
+        if get_handler(condensed_json, 'PREROUTING', 'VYOS_CT_HELPER'):
+            nat['helper_functions'] = 'remove'
+
+            # Retrieve current table handler positions
+            nat['pre_ct_ignore'] = get_handler(condensed_json, 'PREROUTING', 'VYOS_CT_HELPER')
+            nat['pre_ct_conntrack'] = get_handler(condensed_json, 'PREROUTING', 'NAT_CONNTRACK')
+            nat['out_ct_ignore'] = get_handler(condensed_json, 'OUTPUT', 'VYOS_CT_HELPER')
+            nat['out_ct_conntrack'] = get_handler(condensed_json, 'OUTPUT', 'NAT_CONNTRACK')
         nat['deleted'] = ''
         return nat
 
+    nat['firewall_group'] = conf.get_config_dict(['firewall', 'group'], key_mangling=('-', '_'), get_first_key=True,
+                                    no_tag_node_value_mangle=True)
+
     # check if NAT connection tracking helpers need to be set up - this has to
     # be done only once
     if not get_handler(condensed_json, 'PREROUTING', 'NAT_CONNTRACK'):
@@ -146,6 +197,10 @@ def verify(nat):
             if config['outbound_interface'] not in 'any' and config['outbound_interface'] not in interfaces():
                 Warning(f'rule "{rule}" interface "{config["outbound_interface"]}" does not exist on this system')
 
+            if not dict_search('translation.address', config) and not dict_search('translation.port', config):
+                if 'exclude' not in config:
+                    raise ConfigError(f'{err_msg} translation requires address and/or port')
+
             addr = dict_search('translation.address', config)
             if addr != None and addr != 'masquerade' and not is_ip_network(addr):
                 for ip in addr.split('-'):
@@ -153,7 +208,7 @@ def verify(nat):
                         Warning(f'IP address {ip} does not exist on the system!')
 
             # common rule verification
-            verify_rule(config, err_msg)
+            verify_rule(config, err_msg, nat['firewall_group'])
 
 
     if dict_search('destination.rule', nat):
@@ -166,8 +221,12 @@ def verify(nat):
             elif config['inbound_interface'] not in 'any' and config['inbound_interface'] not in interfaces():
                 Warning(f'rule "{rule}" interface "{config["inbound_interface"]}" does not exist on this system')
 
+            if not dict_search('translation.address', config) and not dict_search('translation.port', config):
+                if 'exclude' not in config:
+                    raise ConfigError(f'{err_msg} translation requires address and/or port')
+
             # common rule verification
-            verify_rule(config, err_msg)
+            verify_rule(config, err_msg, nat['firewall_group'])
 
     if dict_search('static.rule', nat):
         for rule, config in dict_search('static.rule', nat).items():
@@ -178,7 +237,7 @@ def verify(nat):
                                   'inbound-interface not specified')
 
             # common rule verification
-            verify_rule(config, err_msg)
+            verify_rule(config, err_msg, nat['firewall_group'])
 
     return None
 
@@ -204,6 +263,10 @@ def apply(nat):
     cmd(f'nft -f {nftables_nat_config}')
     cmd(f'nft -f {nftables_static_nat_conf}')
 
+    if not nat or 'deleted' in nat:
+        os.unlink(nftables_nat_config)
+        os.unlink(nftables_static_nat_conf)
+
     return None
 
 if __name__ == '__main__':
diff --git a/src/conf_mode/pki.py b/src/conf_mode/pki.py
index 29ed7b1b7..e8f3cc87a 100755
--- a/src/conf_mode/pki.py
+++ b/src/conf_mode/pki.py
@@ -16,20 +16,16 @@
 
 from sys import exit
 
-import jmespath
-
 from vyos.config import Config
+from vyos.configdep import set_dependents, call_dependents
 from vyos.configdict import dict_merge
 from vyos.configdict import node_changed
 from vyos.pki import is_ca_certificate
 from vyos.pki import load_certificate
-from vyos.pki import load_certificate_request
 from vyos.pki import load_public_key
 from vyos.pki import load_private_key
 from vyos.pki import load_crl
 from vyos.pki import load_dh_parameters
-from vyos.util import ask_input
-from vyos.util import call
 from vyos.util import dict_search_args
 from vyos.util import dict_search_recursive
 from vyos.xml import defaults
@@ -121,6 +117,39 @@ def get_config(config=None):
                                          get_first_key=True,
                                          no_tag_node_value_mangle=True)
 
+    if 'changed' in pki:
+        for search in sync_search:
+            for key in search['keys']:
+                changed_key = sync_translate[key]
+
+                if changed_key not in pki['changed']:
+                    continue
+
+                for item_name in pki['changed'][changed_key]:
+                    node_present = False
+                    if changed_key == 'openvpn':
+                        node_present = dict_search_args(pki, 'openvpn', 'shared_secret', item_name)
+                    else:
+                        node_present = dict_search_args(pki, changed_key, item_name)
+
+                    if node_present:
+                        search_dict = dict_search_args(pki['system'], *search['path'])
+
+                        if not search_dict:
+                            continue
+
+                        for found_name, found_path in dict_search_recursive(search_dict, key):
+                            if found_name == item_name:
+                                path = search['path']
+                                path_str = ' '.join(path + found_path)
+                                print(f'pki: Updating config: {path_str} {found_name}')
+
+                                if path[0] == 'interfaces':
+                                    ifname = found_path[0]
+                                    set_dependents(path[1], conf, ifname)
+                                else:
+                                    set_dependents(path[1], conf)
+
     return pki
 
 def is_valid_certificate(raw_data):
@@ -259,37 +288,7 @@ def apply(pki):
         return None
 
     if 'changed' in pki:
-        for search in sync_search:
-            for key in search['keys']:
-                changed_key = sync_translate[key]
-
-                if changed_key not in pki['changed']:
-                    continue
-
-                for item_name in pki['changed'][changed_key]:
-                    node_present = False
-                    if changed_key == 'openvpn':
-                        node_present = dict_search_args(pki, 'openvpn', 'shared_secret', item_name)
-                    else:
-                        node_present = dict_search_args(pki, changed_key, item_name)
-
-                    if node_present:
-                        search_dict = dict_search_args(pki['system'], *search['path'])
-
-                        if not search_dict:
-                            continue
-
-                        for found_name, found_path in dict_search_recursive(search_dict, key):
-                            if found_name == item_name:
-                                path_str = ' '.join(search['path'] + found_path)
-                                print(f'pki: Updating config: {path_str} {found_name}')
-
-                                script = search['script']
-                                if found_path[0] == 'interfaces':
-                                    ifname = found_path[2]
-                                    call(f'VYOS_TAGNODE_VALUE={ifname} {script}')
-                                else:
-                                    call(script)
+        call_dependents()
 
     return None
 
diff --git a/src/conf_mode/policy-route-interface.py b/src/conf_mode/policy-route-interface.py
deleted file mode 100755
index 58c5fd93d..000000000
--- a/src/conf_mode/policy-route-interface.py
+++ /dev/null
@@ -1,132 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2021 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import re
-
-from sys import argv
-from sys import exit
-
-from vyos.config import Config
-from vyos.ifconfig import Section
-from vyos.template import render
-from vyos.util import cmd
-from vyos.util import run
-from vyos import ConfigError
-from vyos import airbag
-airbag.enable()
-
-def get_config(config=None):
-    if config:
-        conf = config
-    else:
-        conf = Config()
-
-    ifname = argv[1]
-    ifpath = Section.get_config_path(ifname)
-    if_policy_path = f'interfaces {ifpath} policy'
-
-    if_policy = conf.get_config_dict(if_policy_path, key_mangling=('-', '_'), get_first_key=True,
-                                    no_tag_node_value_mangle=True)
-
-    if_policy['ifname'] = ifname
-    if_policy['policy'] = conf.get_config_dict(['policy'], key_mangling=('-', '_'), get_first_key=True,
-                                    no_tag_node_value_mangle=True)
-
-    return if_policy
-
-def verify_chain(table, chain):
-    # Verify policy route applied
-    code = run(f'nft list chain {table} {chain}')
-    return code == 0
-
-def verify(if_policy):
-    # bail out early - looks like removal from running config
-    if not if_policy:
-        return None
-
-    for route in ['route', 'route6']:
-        if route in if_policy:
-            if route not in if_policy['policy']:
-                raise ConfigError('Policy route not configured')
-
-            route_name = if_policy[route]
-
-            if route_name not in if_policy['policy'][route]:
-                raise ConfigError(f'Invalid policy route name "{name}"')
-
-            nft_prefix = 'VYOS_PBR6_' if route == 'route6' else 'VYOS_PBR_'
-            nft_table = 'ip6 mangle' if route == 'route6' else 'ip mangle'
-
-            if not verify_chain(nft_table, nft_prefix + route_name):
-                raise ConfigError('Policy route did not apply')
-
-    return None
-
-def generate(if_policy):
-    return None
-
-def cleanup_rule(table, chain, ifname, new_name=None):
-    results = cmd(f'nft -a list chain {table} {chain}').split("\n")
-    retval = None
-    for line in results:
-        if f'ifname "{ifname}"' in line:
-            if new_name and f'jump {new_name}' in line:
-                # new_name is used to clear rules for any previously referenced chains
-                # returns true when rule exists and doesn't need to be created
-                retval = True
-                continue
-
-            handle_search = re.search('handle (\d+)', line)
-            if handle_search:
-                cmd(f'nft delete rule {table} {chain} handle {handle_search[1]}')
-    return retval
-
-def apply(if_policy):
-    ifname = if_policy['ifname']
-
-    route_chain = 'VYOS_PBR_PREROUTING'
-    ipv6_route_chain = 'VYOS_PBR6_PREROUTING'
-
-    if 'route' in if_policy:
-        name = 'VYOS_PBR_' + if_policy['route']
-        rule_exists = cleanup_rule('ip mangle', route_chain, ifname, name)
-
-        if not rule_exists:
-            cmd(f'nft insert rule ip mangle {route_chain} iifname {ifname} counter jump {name}')
-    else:
-        cleanup_rule('ip mangle', route_chain, ifname)
-
-    if 'route6' in if_policy:
-        name = 'VYOS_PBR6_' + if_policy['route6']
-        rule_exists = cleanup_rule('ip6 mangle', ipv6_route_chain, ifname, name)
-
-        if not rule_exists:
-            cmd(f'nft insert rule ip6 mangle {ipv6_route_chain} iifname {ifname} counter jump {name}')
-    else:
-        cleanup_rule('ip6 mangle', ipv6_route_chain, ifname)
-
-    return None
-
-if __name__ == '__main__':
-    try:
-        c = get_config()
-        verify(c)
-        generate(c)
-        apply(c)
-    except ConfigError as e:
-        print(e)
-        exit(1)
diff --git a/src/conf_mode/policy-route.py b/src/conf_mode/policy-route.py
index 00539b9c7..1d016695e 100755
--- a/src/conf_mode/policy-route.py
+++ b/src/conf_mode/policy-route.py
@@ -15,7 +15,6 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
-import re
 
 from json import loads
 from sys import exit
@@ -25,7 +24,6 @@ from vyos.config import Config
 from vyos.template import render
 from vyos.util import cmd
 from vyos.util import dict_search_args
-from vyos.util import dict_search_recursive
 from vyos.util import run
 from vyos import ConfigError
 from vyos import airbag
@@ -34,48 +32,13 @@ airbag.enable()
 mark_offset = 0x7FFFFFFF
 nftables_conf = '/run/nftables_policy.conf'
 
-ROUTE_PREFIX = 'VYOS_PBR_'
-ROUTE6_PREFIX = 'VYOS_PBR6_'
-
-preserve_chains = [
-    'VYOS_PBR_PREROUTING',
-    'VYOS_PBR_POSTROUTING',
-    'VYOS_PBR6_PREROUTING',
-    'VYOS_PBR6_POSTROUTING'
-]
-
 valid_groups = [
     'address_group',
+    'domain_group',
     'network_group',
     'port_group'
 ]
 
-group_set_prefix = {
-    'A_': 'address_group',
-    'A6_': 'ipv6_address_group',
-#    'D_': 'domain_group',
-    'M_': 'mac_group',
-    'N_': 'network_group',
-    'N6_': 'ipv6_network_group',
-    'P_': 'port_group'
-}
-
-def get_policy_interfaces(conf):
-    out = {}
-    interfaces = conf.get_config_dict(['interfaces'], key_mangling=('-', '_'), get_first_key=True,
-                                    no_tag_node_value_mangle=True)
-    def find_interfaces(iftype_conf, output={}, prefix=''):
-        for ifname, if_conf in iftype_conf.items():
-            if 'policy' in if_conf:
-                output[prefix + ifname] = if_conf['policy']
-            for vif in ['vif', 'vif_s', 'vif_c']:
-                if vif in if_conf:
-                    output.update(find_interfaces(if_conf[vif], output, f'{prefix}{ifname}.'))
-        return output
-    for iftype, iftype_conf in interfaces.items():
-        out.update(find_interfaces(iftype_conf))
-    return out
-
 def get_config(config=None):
     if config:
         conf = config
@@ -88,7 +51,6 @@ def get_config(config=None):
 
     policy['firewall_group'] = conf.get_config_dict(['firewall', 'group'], key_mangling=('-', '_'), get_first_key=True,
                                     no_tag_node_value_mangle=True)
-    policy['interfaces'] = get_policy_interfaces(conf)
 
     return policy
 
@@ -132,8 +94,8 @@ def verify_rule(policy, name, rule_conf, ipv6, rule_id):
             side_conf = rule_conf[side]
 
             if 'group' in side_conf:
-                if {'address_group', 'network_group'} <= set(side_conf['group']):
-                    raise ConfigError('Only one address-group or network-group can be specified')
+                if len({'address_group', 'domain_group', 'network_group'} & set(side_conf['group'])) > 1:
+                    raise ConfigError('Only one address-group, domain-group or network-group can be specified')
 
                 for group in valid_groups:
                     if group in side_conf['group']:
@@ -168,73 +130,11 @@ def verify(policy):
                     for rule_id, rule_conf in pol_conf['rule'].items():
                         verify_rule(policy, name, rule_conf, ipv6, rule_id)
 
-    for ifname, if_policy in policy['interfaces'].items():
-        name = dict_search_args(if_policy, 'route')
-        ipv6_name = dict_search_args(if_policy, 'route6')
-
-        if name and not dict_search_args(policy, 'route', name):
-            raise ConfigError(f'Policy route "{name}" is still referenced on interface {ifname}')
-
-        if ipv6_name and not dict_search_args(policy, 'route6', ipv6_name):
-            raise ConfigError(f'Policy route6 "{ipv6_name}" is still referenced on interface {ifname}')
-
     return None
 
-def cleanup_commands(policy):
-    commands = []
-    commands_chains = []
-    commands_sets = []
-    for table in ['ip mangle', 'ip6 mangle']:
-        route_node = 'route' if table == 'ip mangle' else 'route6'
-        chain_prefix = ROUTE_PREFIX if table == 'ip mangle' else ROUTE6_PREFIX
-
-        json_str = cmd(f'nft -t -j list table {table}')
-        obj = loads(json_str)
-        if 'nftables' not in obj:
-            continue
-        for item in obj['nftables']:
-            if 'chain' in item:
-                chain = item['chain']['name']
-                if chain in preserve_chains or not chain.startswith("VYOS_PBR"):
-                    continue
-
-                if dict_search_args(policy, route_node, chain.replace(chain_prefix, "", 1)) != None:
-                    commands.append(f'flush chain {table} {chain}')
-                else:
-                    commands_chains.append(f'delete chain {table} {chain}')
-
-            if 'rule' in item:
-                rule = item['rule']
-                chain = rule['chain']
-                handle = rule['handle']
-
-                if chain not in preserve_chains:
-                    continue
-
-                target, _ = next(dict_search_recursive(rule['expr'], 'target'))
-
-                if target.startswith(chain_prefix):
-                    if dict_search_args(policy, route_node, target.replace(chain_prefix, "", 1)) == None:
-                        commands.append(f'delete rule {table} {chain} handle {handle}')
-
-            if 'set' in item:
-                set_name = item['set']['name']
-
-                for prefix, group_type in group_set_prefix.items():
-                    if set_name.startswith(prefix):
-                        group_name = set_name.replace(prefix, "", 1)
-                        if dict_search_args(policy, 'firewall_group', group_type, group_name) != None:
-                            commands_sets.append(f'flush set {table} {set_name}')
-                        else:
-                            commands_sets.append(f'delete set {table} {set_name}')
-
-    return commands + commands_chains + commands_sets
-
 def generate(policy):
     if not os.path.exists(nftables_conf):
         policy['first_install'] = True
-    else:
-        policy['cleanup_commands'] = cleanup_commands(policy)
 
     render(nftables_conf, 'firewall/nftables-policy.j2', policy)
     return None
diff --git a/src/conf_mode/policy.py b/src/conf_mode/policy.py
index a0d288e91..331194fec 100755
--- a/src/conf_mode/policy.py
+++ b/src/conf_mode/policy.py
@@ -167,6 +167,11 @@ def verify(policy):
                 continue
 
             for rule, rule_config in route_map_config['rule'].items():
+                # Action 'deny' cannot be used with "continue"
+                # FRR does not validate it T4827
+                if rule_config['action'] == 'deny' and 'continue' in rule_config:
+                    raise ConfigError(f'rule {rule} "continue" cannot be used with action deny!')
+
                 # Specified community-list must exist
                 tmp = dict_search('match.community.community_list',
                                   rule_config)
diff --git a/src/conf_mode/protocols_failover.py b/src/conf_mode/protocols_failover.py
new file mode 100755
index 000000000..048ba7a89
--- /dev/null
+++ b/src/conf_mode/protocols_failover.py
@@ -0,0 +1,121 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import json
+
+from pathlib import Path
+
+from vyos.config import Config
+from vyos.configdict import dict_merge
+from vyos.template import render
+from vyos.util import call
+from vyos.xml import defaults
+from vyos import ConfigError
+from vyos import airbag
+
+airbag.enable()
+
+
+service_name = 'vyos-failover'
+service_conf = Path(f'/run/{service_name}.conf')
+systemd_service = '/etc/systemd/system/vyos-failover.service'
+rt_proto_failover = '/etc/iproute2/rt_protos.d/failover.conf'
+
+
+def get_config(config=None):
+    if config:
+        conf = config
+    else:
+        conf = Config()
+
+    base = ['protocols', 'failover']
+    failover = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
+
+    # Set default values only if we set config
+    if failover.get('route'):
+        for route, route_config in failover.get('route').items():
+            for next_hop, next_hop_config in route_config.get('next_hop').items():
+                default_values = defaults(base + ['route'])
+                failover['route'][route]['next_hop'][next_hop] = dict_merge(
+                    default_values['next_hop'], failover['route'][route]['next_hop'][next_hop])
+
+    return failover
+
+def verify(failover):
+    # bail out early - looks like removal from running config
+    if not failover:
+        return None
+
+    if 'route' not in failover:
+        raise ConfigError(f'Failover "route" is mandatory!')
+
+    for route, route_config in failover['route'].items():
+        if not route_config.get('next_hop'):
+            raise ConfigError(f'Next-hop for "{route}" is mandatory!')
+
+        for next_hop, next_hop_config in route_config.get('next_hop').items():
+            if 'interface' not in next_hop_config:
+                raise ConfigError(f'Interface for route "{route}" next-hop "{next_hop}" is mandatory!')
+
+            if not next_hop_config.get('check'):
+                raise ConfigError(f'Check target for next-hop "{next_hop}" is mandatory!')
+
+            if 'target' not in next_hop_config['check']:
+                raise ConfigError(f'Check target for next-hop "{next_hop}" is mandatory!')
+
+            check_type = next_hop_config['check']['type']
+            if check_type == 'tcp' and 'port' not in next_hop_config['check']:
+                raise ConfigError(f'Check port for next-hop "{next_hop}" and type TCP is mandatory!')
+
+    return None
+
+def generate(failover):
+    if not failover:
+        service_conf.unlink(missing_ok=True)
+        return None
+
+    # Add own rt_proto 'failover'
+    # Helps to detect all own routes 'proto failover'
+    with open(rt_proto_failover, 'w') as f:
+        f.write('111  failover\n')
+
+    # Write configuration file
+    conf_json = json.dumps(failover, indent=4)
+    service_conf.write_text(conf_json)
+    render(systemd_service, 'protocols/systemd_vyos_failover_service.j2', failover)
+
+    return None
+
+def apply(failover):
+    if not failover:
+        call(f'systemctl stop {service_name}.service')
+        call('ip route flush protocol failover')
+    else:
+        call('systemctl daemon-reload')
+        call(f'systemctl restart {service_name}.service')
+        call(f'ip route flush protocol failover')
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)
diff --git a/src/conf_mode/protocols_mpls.py b/src/conf_mode/protocols_mpls.py
index 5da8e7b06..73af6595b 100755
--- a/src/conf_mode/protocols_mpls.py
+++ b/src/conf_mode/protocols_mpls.py
@@ -24,6 +24,7 @@ from vyos.template import render_to_string
 from vyos.util import dict_search
 from vyos.util import read_file
 from vyos.util import sysctl_write
+from vyos.configverify import verify_interface_exists
 from vyos import ConfigError
 from vyos import frr
 from vyos import airbag
@@ -46,6 +47,10 @@ def verify(mpls):
     if not mpls:
         return None
 
+    if 'interface' in mpls:
+        for interface in mpls['interface']:
+            verify_interface_exists(interface)
+
     # Checks to see if LDP is properly configured
     if 'ldp' in mpls:
         # If router ID not defined
diff --git a/src/conf_mode/service_pppoe-server.py b/src/conf_mode/service_pppoe-server.py
index ba0249efd..600ba4e92 100755
--- a/src/conf_mode/service_pppoe-server.py
+++ b/src/conf_mode/service_pppoe-server.py
@@ -20,6 +20,7 @@ from sys import exit
 
 from vyos.config import Config
 from vyos.configdict import get_accel_dict
+from vyos.configdict import is_node_changed
 from vyos.configverify import verify_accel_ppp_base_service
 from vyos.configverify import verify_interface_exists
 from vyos.template import render
@@ -43,6 +44,13 @@ def get_config(config=None):
 
     # retrieve common dictionary keys
     pppoe = get_accel_dict(conf, base, pppoe_chap_secrets)
+
+    # reload-or-restart does not implemented in accel-ppp
+    # use this workaround until it will be implemented
+    # https://phabricator.accel-ppp.org/T3
+    if is_node_changed(conf, base + ['client-ip-pool']) or is_node_changed(
+            conf, base + ['client-ipv6-pool']):
+        pppoe.update({'restart_required': {}})
     return pppoe
 
 def verify(pppoe):
@@ -95,7 +103,10 @@ def apply(pppoe):
                 os.unlink(file)
         return None
 
-    call(f'systemctl reload-or-restart {systemd_service}')
+    if 'restart_required' in pppoe:
+        call(f'systemctl restart {systemd_service}')
+    else:
+        call(f'systemctl reload-or-restart {systemd_service}')
 
 if __name__ == '__main__':
     try:
diff --git a/src/conf_mode/service_webproxy.py b/src/conf_mode/service_webproxy.py
index 32af31bde..41a1deaa3 100755
--- a/src/conf_mode/service_webproxy.py
+++ b/src/conf_mode/service_webproxy.py
@@ -28,8 +28,10 @@ from vyos.util import dict_search
 from vyos.util import write_file
 from vyos.validate import is_addr_assigned
 from vyos.xml import defaults
+from vyos.base import Warning
 from vyos import ConfigError
 from vyos import airbag
+
 airbag.enable()
 
 squid_config_file = '/etc/squid/squid.conf'
@@ -37,24 +39,57 @@ squidguard_config_file = '/etc/squidguard/squidGuard.conf'
 squidguard_db_dir = '/opt/vyatta/etc/config/url-filtering/squidguard/db'
 user_group = 'proxy'
 
-def generate_sg_localdb(category, list_type, role, proxy):
+
+def check_blacklist_categorydb(config_section):
+    if 'block_category' in config_section:
+        for category in config_section['block_category']:
+            check_categorydb(category)
+    if 'allow_category' in config_section:
+        for category in config_section['allow_category']:
+            check_categorydb(category)
+
+
+def check_categorydb(category: str):
+    """
+    Check if category's db exist
+    :param category:
+    :type str:
+    """
+    path_to_cat: str = f'{squidguard_db_dir}/{category}'
+    if not os.path.exists(f'{path_to_cat}/domains.db') \
+            and not os.path.exists(f'{path_to_cat}/urls.db') \
+            and not os.path.exists(f'{path_to_cat}/expressions.db'):
+        Warning(f'DB of category {category} does not exist.\n '
+                f'Use [update webproxy blacklists] '
+                f'or delete undefined category!')
+
+
+def generate_sg_rule_localdb(category, list_type, role, proxy):
+    if not category or not list_type or not role:
+        return None
+
     cat_ = category.replace('-', '_')
-    if isinstance(dict_search(f'url_filtering.squidguard.{cat_}', proxy),
-                  list):
 
+    if role == 'default':
+        path_to_cat = f'{cat_}'
+    else:
+        path_to_cat = f'rule.{role}.{cat_}'
+    if isinstance(
+            dict_search(f'url_filtering.squidguard.{path_to_cat}', proxy),
+            list):
         # local block databases must be generated "on-the-fly"
         tmp = {
-            'squidguard_db_dir' : squidguard_db_dir,
-            'category' : f'{category}-default',
-            'list_type' : list_type,
-            'rule' : role
+            'squidguard_db_dir': squidguard_db_dir,
+            'category': f'{category}-{role}',
+            'list_type': list_type,
+            'rule': role
         }
         sg_tmp_file = '/tmp/sg.conf'
-        db_file = f'{category}-default/{list_type}'
-        domains = '\n'.join(dict_search(f'url_filtering.squidguard.{cat_}', proxy))
-
+        db_file = f'{category}-{role}/{list_type}'
+        domains = '\n'.join(
+            dict_search(f'url_filtering.squidguard.{path_to_cat}', proxy))
         # local file
-        write_file(f'{squidguard_db_dir}/{category}-default/local', '',
+        write_file(f'{squidguard_db_dir}/{category}-{role}/local', '',
                    user=user_group, group=user_group)
         # database input file
         write_file(f'{squidguard_db_dir}/{db_file}', domains,
@@ -64,17 +99,18 @@ def generate_sg_localdb(category, list_type, role, proxy):
         render(sg_tmp_file, 'squid/sg_acl.conf.j2', tmp,
                user=user_group, group=user_group)
 
-        call(f'su - {user_group} -c "squidGuard -d -c {sg_tmp_file} -C {db_file}"')
+        call(
+            f'su - {user_group} -c "squidGuard -d -c {sg_tmp_file} -C {db_file}"')
 
         if os.path.exists(sg_tmp_file):
             os.unlink(sg_tmp_file)
-
     else:
         # if category is not part of our configuration, clean out the
         # squidguard lists
-        tmp = f'{squidguard_db_dir}/{category}-default'
+        tmp = f'{squidguard_db_dir}/{category}-{role}'
         if os.path.exists(tmp):
-            rmtree(f'{squidguard_db_dir}/{category}-default')
+            rmtree(f'{squidguard_db_dir}/{category}-{role}')
+
 
 def get_config(config=None):
     if config:
@@ -85,7 +121,8 @@ def get_config(config=None):
     if not conf.exists(base):
         return None
 
-    proxy = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
+    proxy = conf.get_config_dict(base, key_mangling=('-', '_'),
+                                 get_first_key=True)
     # We have gathered the dict representation of the CLI, but there are default
     # options which we need to update into the dictionary retrived.
     default_values = defaults(base)
@@ -110,10 +147,11 @@ def get_config(config=None):
         default_values = defaults(base + ['cache-peer'])
         for peer in proxy['cache_peer']:
             proxy['cache_peer'][peer] = dict_merge(default_values,
-                proxy['cache_peer'][peer])
+                                                   proxy['cache_peer'][peer])
 
     return proxy
 
+
 def verify(proxy):
     if not proxy:
         return None
@@ -170,17 +208,30 @@ def generate(proxy):
     render(squidguard_config_file, 'squid/squidGuard.conf.j2', proxy)
 
     cat_dict = {
-        'local-block' : 'domains',
-        'local-block-keyword' : 'expressions',
-        'local-block-url' : 'urls',
-        'local-ok' : 'domains',
-        'local-ok-url' : 'urls'
+        'local-block': 'domains',
+        'local-block-keyword': 'expressions',
+        'local-block-url': 'urls',
+        'local-ok': 'domains',
+        'local-ok-url': 'urls'
     }
-    for category, list_type in cat_dict.items():
-        generate_sg_localdb(category, list_type, 'default', proxy)
+    if dict_search(f'url_filtering.squidguard', proxy) is not None:
+        squidgard_config_section = proxy['url_filtering']['squidguard']
+
+        for category, list_type in cat_dict.items():
+            generate_sg_rule_localdb(category, list_type, 'default', proxy)
+        check_blacklist_categorydb(squidgard_config_section)
+
+        if 'rule' in squidgard_config_section:
+            for rule in squidgard_config_section['rule']:
+                rule_config_section = squidgard_config_section['rule'][
+                    rule]
+                for category, list_type in cat_dict.items():
+                    generate_sg_rule_localdb(category, list_type, rule, proxy)
+                check_blacklist_categorydb(rule_config_section)
 
     return None
 
+
 def apply(proxy):
     if not proxy:
         # proxy is removed in the commit
@@ -198,6 +249,7 @@ def apply(proxy):
     call('systemctl restart squid.service')
     return None
 
+
 if __name__ == '__main__':
     try:
         c = get_config()
diff --git a/src/conf_mode/vpn_ipsec.py b/src/conf_mode/vpn_ipsec.py
index 77a425f8b..b79e9847a 100755
--- a/src/conf_mode/vpn_ipsec.py
+++ b/src/conf_mode/vpn_ipsec.py
@@ -22,6 +22,7 @@ from sys import exit
 from time import sleep
 from time import time
 
+from vyos.base import Warning
 from vyos.config import Config
 from vyos.configdict import leaf_node_changed
 from vyos.configverify import verify_interface_exists
@@ -117,13 +118,26 @@ def get_config(config=None):
                     ipsec['ike_group'][group]['proposal'][proposal] = dict_merge(default_values,
                         ipsec['ike_group'][group]['proposal'][proposal])
 
-    if 'remote_access' in ipsec and 'connection' in ipsec['remote_access']:
+    # XXX: T2665: we can not safely rely on the defaults() when there are
+    # tagNodes in place, it is better to blend in the defaults manually.
+    if dict_search('remote_access.connection', ipsec):
         default_values = defaults(base + ['remote-access', 'connection'])
         for rw in ipsec['remote_access']['connection']:
             ipsec['remote_access']['connection'][rw] = dict_merge(default_values,
               ipsec['remote_access']['connection'][rw])
 
-    if 'remote_access' in ipsec and 'radius' in ipsec['remote_access'] and 'server' in ipsec['remote_access']['radius']:
+    # XXX: T2665: we can not safely rely on the defaults() when there are
+    # tagNodes in place, it is better to blend in the defaults manually.
+    if dict_search('remote_access.radius.server', ipsec):
+        # Fist handle the "base" stuff like RADIUS timeout
+        default_values = defaults(base + ['remote-access', 'radius'])
+        if 'server' in default_values:
+            del default_values['server']
+        ipsec['remote_access']['radius'] = dict_merge(default_values,
+                                                      ipsec['remote_access']['radius'])
+
+        # Take care about individual RADIUS servers implemented as tagNodes - this
+        # requires special treatment
         default_values = defaults(base + ['remote-access', 'radius', 'server'])
         for server in ipsec['remote_access']['radius']['server']:
             ipsec['remote_access']['radius']['server'][server] = dict_merge(default_values,
@@ -425,6 +439,10 @@ def verify(ipsec):
                 if 'local_address' in peer_conf and 'dhcp_interface' in peer_conf:
                     raise ConfigError(f"A single local-address or dhcp-interface is required when using VTI on site-to-site peer {peer}")
 
+                if dict_search('options.disable_route_autoinstall',
+                               ipsec) == None:
+                    Warning('It\'s recommended to use ipsec vty with the next command\n[set vpn ipsec option disable-route-autoinstall]')
+
                 if 'bind' in peer_conf['vti']:
                     vti_interface = peer_conf['vti']['bind']
                     if not os.path.exists(f'/sys/class/net/{vti_interface}'):
diff --git a/src/conf_mode/vpn_l2tp.py b/src/conf_mode/vpn_l2tp.py
index fd5a4acd8..27e78db99 100755
--- a/src/conf_mode/vpn_l2tp.py
+++ b/src/conf_mode/vpn_l2tp.py
@@ -26,7 +26,10 @@ from ipaddress import ip_network
 from vyos.config import Config
 from vyos.template import is_ipv4
 from vyos.template import render
-from vyos.util import call, get_half_cpus
+from vyos.util import call
+from vyos.util import get_half_cpus
+from vyos.util import check_port_availability
+from vyos.util import is_listen_port_bind_service
 from vyos import ConfigError
 
 from vyos import airbag
@@ -43,6 +46,7 @@ default_config_data = {
     'client_ip_pool': None,
     'client_ip_subnets': [],
     'client_ipv6_pool': [],
+    'client_ipv6_pool_configured': False,
     'client_ipv6_delegate_prefix': [],
     'dnsv4': [],
     'dnsv6': [],
@@ -64,7 +68,7 @@ default_config_data = {
     'radius_source_address': '',
     'radius_shaper_attr': '',
     'radius_shaper_vendor': '',
-    'radius_dynamic_author': '',
+    'radius_dynamic_author': {},
     'wins': [],
     'ip6_column': [],
     'thread_cnt': get_half_cpus()
@@ -205,21 +209,21 @@ def get_config(config=None):
             l2tp['radius_source_address'] = conf.return_value(['source-address'])
 
         # Dynamic Authorization Extensions (DOA)/Change Of Authentication (COA)
-        if conf.exists(['dynamic-author']):
+        if conf.exists(['dae-server']):
             dae = {
                 'port' : '',
                 'server' : '',
                 'key' : ''
             }
 
-            if conf.exists(['dynamic-author', 'server']):
-                dae['server'] = conf.return_value(['dynamic-author', 'server'])
+            if conf.exists(['dae-server', 'ip-address']):
+                dae['server'] = conf.return_value(['dae-server', 'ip-address'])
 
-            if conf.exists(['dynamic-author', 'port']):
-                dae['port'] = conf.return_value(['dynamic-author', 'port'])
+            if conf.exists(['dae-server', 'port']):
+                dae['port'] = conf.return_value(['dae-server', 'port'])
 
-            if conf.exists(['dynamic-author', 'key']):
-                dae['key'] = conf.return_value(['dynamic-author', 'key'])
+            if conf.exists(['dae-server', 'secret']):
+                dae['key'] = conf.return_value(['dae-server', 'secret'])
 
             l2tp['radius_dynamic_author'] = dae
 
@@ -244,6 +248,7 @@ def get_config(config=None):
         l2tp['client_ip_subnets'] = conf.return_values(['client-ip-pool', 'subnet'])
 
     if conf.exists(['client-ipv6-pool', 'prefix']):
+        l2tp['client_ipv6_pool_configured'] = True
         l2tp['ip6_column'].append('ip6')
         for prefix in conf.list_nodes(['client-ipv6-pool', 'prefix']):
             tmp = {
@@ -306,6 +311,9 @@ def get_config(config=None):
     if conf.exists(['ppp-options', 'lcp-echo-interval']):
         l2tp['ppp_echo_interval'] = conf.return_value(['ppp-options', 'lcp-echo-interval'])
 
+    if conf.exists(['ppp-options', 'ipv6']):
+        l2tp['ppp_ipv6'] = conf.return_value(['ppp-options', 'ipv6'])
+
     return l2tp
 
 
@@ -329,6 +337,19 @@ def verify(l2tp):
             if not radius['key']:
                 raise ConfigError(f"Missing RADIUS secret for server { radius['key'] }")
 
+        if l2tp['radius_dynamic_author']:
+            if not l2tp['radius_dynamic_author']['server']:
+                raise ConfigError("Missing ip-address for dae-server")
+            if not l2tp['radius_dynamic_author']['key']:
+                raise ConfigError("Missing secret for dae-server")
+            address = l2tp['radius_dynamic_author']['server']
+            port = l2tp['radius_dynamic_author']['port']
+            proto = 'tcp'
+            # check if dae listen port is not used by another service
+            if check_port_availability(address, int(port), proto) is not True and \
+                not is_listen_port_bind_service(int(port), 'accel-pppd'):
+                raise ConfigError(f'"{proto}" port "{port}" is used by another service')
+
     # check for the existence of a client ip pool
     if not (l2tp['client_ip_pool'] or l2tp['client_ip_subnets']):
         raise ConfigError(
diff --git a/src/conf_mode/vpn_openconnect.py b/src/conf_mode/vpn_openconnect.py
index c050b796b..af3c51efc 100755
--- a/src/conf_mode/vpn_openconnect.py
+++ b/src/conf_mode/vpn_openconnect.py
@@ -58,7 +58,7 @@ def get_config():
     default_values = defaults(base)
     ocserv = dict_merge(default_values, ocserv)
 
-    if "local" in ocserv["authentication"]["mode"]:
+    if 'mode' in ocserv["authentication"] and "local" in ocserv["authentication"]["mode"]:
         # workaround a "know limitation" - https://phabricator.vyos.net/T2665
         del ocserv['authentication']['local_users']['username']['otp']
         if not ocserv["authentication"]["local_users"]["username"]:
@@ -157,7 +157,7 @@ def verify(ocserv):
                 ocserv["network_settings"]["push_route"].remove("0.0.0.0/0")
                 ocserv["network_settings"]["push_route"].append("default")
         else:
-            ocserv["network_settings"]["push_route"] = "default"
+            ocserv["network_settings"]["push_route"] = ["default"]
     else:
         raise ConfigError('openconnect network settings required')
 
@@ -247,7 +247,7 @@ def apply(ocserv):
             if os.path.exists(file):
                 os.unlink(file)
     else:
-        call('systemctl restart ocserv.service')
+        call('systemctl reload-or-restart ocserv.service')
         counter = 0
         while True:
             # exit early when service runs
diff --git a/src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf b/src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf
index b1902b585..518abeaec 100644
--- a/src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf
+++ b/src/etc/dhcp/dhclient-enter-hooks.d/04-vyos-resolvconf
@@ -33,8 +33,8 @@ if /usr/bin/systemctl -q is-active vyos-hostsd; then
         if [ -n "$new_dhcp6_name_servers" ]; then
             logmsg info "Deleting nameservers with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
             $hostsd_client --delete-name-servers --tag "dhcpv6-$interface"
-            logmsg info "Adding nameservers \"$new_dhcpv6_name_servers\" with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
-            $hostsd_client --add-name-servers $new_dhcpv6_name_servers --tag "dhcpv6-$interface"
+            logmsg info "Adding nameservers \"$new_dhcp6_name_servers\" with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
+            $hostsd_client --add-name-servers $new_dhcp6_name_servers --tag "dhcpv6-$interface"
             hostsd_changes=y
         fi
 
diff --git a/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup b/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup
index ad6a1d5eb..da1bda137 100644
--- a/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup
+++ b/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup
@@ -8,7 +8,7 @@ hostsd_changes=
 /usr/bin/systemctl -q is-active vyos-hostsd
 hostsd_status=$?
 
-if [[ $reason =~ (EXPIRE|FAIL|RELEASE|STOP) ]]; then
+if [[ $reason =~ ^(EXPIRE|FAIL|RELEASE|STOP)$ ]]; then
     if [[ $hostsd_status -eq 0 ]]; then
         # delete search domains and nameservers via vyos-hostsd
         logmsg info "Deleting search domains with tag \"dhcp-$interface\" via vyos-hostsd-client"
@@ -96,7 +96,7 @@ if [[ $reason =~ (EXPIRE|FAIL|RELEASE|STOP) ]]; then
     fi
 fi
 
-if [[ $reason =~ (EXPIRE6|RELEASE6|STOP6) ]]; then
+if [[ $reason =~ ^(EXPIRE6|RELEASE6|STOP6)$ ]]; then
     if [[ $hostsd_status -eq 0 ]]; then
         # delete search domains and nameservers via vyos-hostsd
         logmsg info "Deleting search domains with tag \"dhcpv6-$interface\" via vyos-hostsd-client"
diff --git a/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook b/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook
index eeb8b0782..49bb18372 100644
--- a/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook
+++ b/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook
@@ -8,12 +8,12 @@
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
 # published by the Free Software Foundation.
-# 
+#
 # This program is distributed in the hope that it will be useful, but
 # WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 # General Public License for more details.
-# 
+#
 # This code was originally developed by Vyatta, Inc.
 # Portions created by Vyatta are Copyright (C) 2006, 2007, 2008 Vyatta, Inc.
 # All Rights Reserved.
@@ -23,7 +23,7 @@
 RUN="yes"
 
 proto=""
-if [[ $reason =~ (REBOOT6|INIT6|EXPIRE6|RELEASE6|STOP6|INFORM6|BOUND6|REBIND6|DELEGATED6) ]]; then
+if [[ $reason =~ ^(REBOOT6|INIT6|EXPIRE6|RELEASE6|STOP6|INFORM6|BOUND6|REBIND6|DELEGATED6)$ ]]; then
         proto="v6"
 fi
 
diff --git a/src/etc/ppp/ip-down.d/98-vyos-pppoe-cleanup-nameservers b/src/etc/ppp/ip-down.d/98-vyos-pppoe-cleanup-nameservers
new file mode 100755
index 000000000..222c75f21
--- /dev/null
+++ b/src/etc/ppp/ip-down.d/98-vyos-pppoe-cleanup-nameservers
@@ -0,0 +1,15 @@
+#!/bin/bash
+### Autogenerated by interfaces-pppoe.py ###
+
+interface=$6
+if [ -z "$interface" ]; then
+    exit
+fi
+
+if ! /usr/bin/systemctl -q is-active vyos-hostsd; then
+    exit  # vyos-hostsd is not running
+fi
+
+hostsd_client="/usr/bin/vyos-hostsd-client"
+$hostsd_client --delete-name-servers --tag "dhcp-$interface"
+$hostsd_client --apply
diff --git a/src/etc/ppp/ip-up.d/96-vyos-sstpc-callback b/src/etc/ppp/ip-up.d/96-vyos-sstpc-callback
new file mode 100755
index 000000000..4e8804f29
--- /dev/null
+++ b/src/etc/ppp/ip-up.d/96-vyos-sstpc-callback
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This is a Python hook script which is invoked whenever a SSTP client session
+# goes "ip-up". It will call into our vyos.ifconfig library and will then
+# execute common tasks for the SSTP interface. The reason we have to "hook" this
+# is that we can not create a sstpcX interface in advance in linux and then
+# connect pppd to this already existing interface.
+
+from sys import argv
+from sys import exit
+
+from vyos.configquery import ConfigTreeQuery
+from vyos.configdict import get_interface_dict
+from vyos.ifconfig import SSTPCIf
+
+# When the ppp link comes up, this script is called with the following
+# parameters
+#       $1      the interface name used by pppd (e.g. ppp3)
+#       $2      the tty device name
+#       $3      the tty device speed
+#       $4      the local IP address for the interface
+#       $5      the remote IP address
+#       $6      the parameter specified by the 'ipparam' option to pppd
+
+if (len(argv) < 7):
+    exit(1)
+
+interface = argv[6]
+
+conf = ConfigTreeQuery()
+_, sstpc = get_interface_dict(conf.config, ['interfaces', 'sstpc'], interface)
+
+# Update the config
+p = SSTPCIf(interface)
+p.update(sstpc)
diff --git a/src/etc/ppp/ip-up.d/98-vyos-pppoe-setup-nameservers b/src/etc/ppp/ip-up.d/98-vyos-pppoe-setup-nameservers
new file mode 100755
index 000000000..0fcedbedc
--- /dev/null
+++ b/src/etc/ppp/ip-up.d/98-vyos-pppoe-setup-nameservers
@@ -0,0 +1,24 @@
+#!/bin/bash
+### Autogenerated by interfaces-pppoe.py ###
+
+interface=$6
+if [ -z "$interface" ]; then
+    exit
+fi
+
+if ! /usr/bin/systemctl -q is-active vyos-hostsd; then
+    exit  # vyos-hostsd is not running
+fi
+
+hostsd_client="/usr/bin/vyos-hostsd-client"
+
+$hostsd_client --delete-name-servers --tag "dhcp-$interface"
+
+if [ "$USEPEERDNS" ] && [ -n "$DNS1" ]; then
+$hostsd_client --add-name-servers "$DNS1" --tag "dhcp-$interface"
+fi
+if [ "$USEPEERDNS" ] && [ -n "$DNS2" ]; then
+$hostsd_client --add-name-servers "$DNS2" --tag "dhcp-$interface"
+fi
+
+$hostsd_client --apply
diff --git a/src/helpers/system-versions-foot.py b/src/helpers/system-versions-foot.py
index 2aa687221..9614f0d28 100755
--- a/src/helpers/system-versions-foot.py
+++ b/src/helpers/system-versions-foot.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python3
 
-# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+# Copyright 2019, 2022 VyOS maintainers and contributors <maintainers@vyos.io>
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -16,24 +16,13 @@
 # along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
 import sys
-import vyos.formatversions as formatversions
-import vyos.systemversions as systemversions
 import vyos.defaults
-import vyos.version
-
-sys_versions = systemversions.get_system_component_version()
-
-component_string = formatversions.format_versions_string(sys_versions)
-
-os_version_string = vyos.version.get_version()
+from vyos.component_version import write_system_footer
 
 sys.stdout.write("\n\n")
 if vyos.defaults.cfg_vintage == 'vyos':
-    formatversions.write_vyos_versions_foot(None, component_string,
-                                            os_version_string)
+    write_system_footer(None, vintage='vyos')
 elif vyos.defaults.cfg_vintage == 'vyatta':
-    formatversions.write_vyatta_versions_foot(None, component_string,
-                                              os_version_string)
+    write_system_footer(None, vintage='vyatta')
 else:
-    formatversions.write_vyatta_versions_foot(None, component_string,
-                                              os_version_string)
+    write_system_footer(None, vintage='vyos')
diff --git a/src/helpers/vyos-domain-group-resolve.py b/src/helpers/vyos-domain-group-resolve.py
deleted file mode 100755
index 6b677670b..000000000
--- a/src/helpers/vyos-domain-group-resolve.py
+++ /dev/null
@@ -1,60 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2022 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-
-import time
-
-from vyos.configquery import ConfigTreeQuery
-from vyos.firewall import get_ips_domains_dict
-from vyos.firewall import nft_add_set_elements
-from vyos.firewall import nft_flush_set
-from vyos.firewall import nft_init_set
-from vyos.firewall import nft_update_set_elements
-from vyos.util import call
-
-
-base = ['firewall', 'group', 'domain-group']
-check_required = True
-# count_failed = 0
-# Timeout in sec between checks
-timeout = 300
-
-domain_state = {}
-
-if __name__ == '__main__':
-
-    while check_required:
-        config = ConfigTreeQuery()
-        if config.exists(base):
-            domain_groups = config.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
-            for set_name, domain_config in domain_groups.items():
-                list_domains = domain_config['address']
-                elements = []
-                ip_dict = get_ips_domains_dict(list_domains)
-
-                for domain in list_domains:
-                    # Resolution succeeded, update domain state
-                    if domain in ip_dict:
-                        domain_state[domain] = ip_dict[domain]
-                        elements += ip_dict[domain]
-                    # Resolution failed, use previous domain state
-                    elif domain in domain_state:
-                        elements += domain_state[domain]
-
-                # Resolve successful
-                if elements:
-                    nft_update_set_elements(f'D_{set_name}', elements)
-        time.sleep(timeout)
diff --git a/src/helpers/vyos-domain-resolver.py b/src/helpers/vyos-domain-resolver.py
new file mode 100755
index 000000000..e31d9238e
--- /dev/null
+++ b/src/helpers/vyos-domain-resolver.py
@@ -0,0 +1,183 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import json
+import os
+import time
+
+from vyos.configdict import dict_merge
+from vyos.configquery import ConfigTreeQuery
+from vyos.firewall import fqdn_config_parse
+from vyos.firewall import fqdn_resolve
+from vyos.util import cmd
+from vyos.util import commit_in_progress
+from vyos.util import dict_search_args
+from vyos.util import run
+from vyos.xml import defaults
+
+base = ['firewall']
+timeout = 300
+cache = False
+
+domain_state = {}
+
+ipv4_tables = {
+    'ip vyos_mangle',
+    'ip vyos_filter',
+    'ip vyos_nat'
+}
+
+ipv6_tables = {
+    'ip6 vyos_mangle',
+    'ip6 vyos_filter'
+}
+
+def get_config(conf):
+    firewall = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True,
+                                    no_tag_node_value_mangle=True)
+
+    default_values = defaults(base)
+    for tmp in ['name', 'ipv6_name']:
+        if tmp in default_values:
+            del default_values[tmp]
+
+    if 'zone' in default_values:
+        del default_values['zone']
+
+    firewall = dict_merge(default_values, firewall)
+
+    global timeout, cache
+
+    if 'resolver_interval' in firewall:
+        timeout = int(firewall['resolver_interval'])
+
+    if 'resolver_cache' in firewall:
+        cache = True
+
+    fqdn_config_parse(firewall)
+
+    return firewall
+
+def resolve(domains, ipv6=False):
+    global domain_state
+
+    ip_list = set()
+
+    for domain in domains:
+        resolved = fqdn_resolve(domain, ipv6=ipv6)
+
+        if resolved and cache:
+            domain_state[domain] = resolved
+        elif not resolved:
+            if domain not in domain_state:
+                continue
+            resolved = domain_state[domain]
+
+        ip_list = ip_list | resolved
+    return ip_list
+
+def nft_output(table, set_name, ip_list):
+    output = [f'flush set {table} {set_name}']
+    if ip_list:
+        ip_str = ','.join(ip_list)
+        output.append(f'add element {table} {set_name} {{ {ip_str} }}')
+    return output
+
+def nft_valid_sets():
+    try:
+        valid_sets = []
+        sets_json = cmd('nft -j list sets')
+        sets_obj = json.loads(sets_json)
+
+        for obj in sets_obj['nftables']:
+            if 'set' in obj:
+                family = obj['set']['family']
+                table = obj['set']['table']
+                name = obj['set']['name']
+                valid_sets.append((f'{family} {table}', name))
+
+        return valid_sets
+    except:
+        return []
+
+def update(firewall):
+    conf_lines = []
+    count = 0
+
+    valid_sets = nft_valid_sets()
+
+    domain_groups = dict_search_args(firewall, 'group', 'domain_group')
+    if domain_groups:
+        for set_name, domain_config in domain_groups.items():
+            if 'address' not in domain_config:
+                continue
+
+            nft_set_name = f'D_{set_name}'
+            domains = domain_config['address']
+
+            ip_list = resolve(domains, ipv6=False)
+            for table in ipv4_tables:
+                if (table, nft_set_name) in valid_sets:
+                    conf_lines += nft_output(table, nft_set_name, ip_list)
+
+            ip6_list = resolve(domains, ipv6=True)
+            for table in ipv6_tables:
+                if (table, nft_set_name) in valid_sets:
+                    conf_lines += nft_output(table, nft_set_name, ip6_list)
+            count += 1
+
+    for set_name, domain in firewall['ip_fqdn'].items():
+        table = 'ip vyos_filter'
+        nft_set_name = f'FQDN_{set_name}'
+
+        ip_list = resolve([domain], ipv6=False)
+
+        if (table, nft_set_name) in valid_sets:
+            conf_lines += nft_output(table, nft_set_name, ip_list)
+        count += 1
+
+    for set_name, domain in firewall['ip6_fqdn'].items():
+        table = 'ip6 vyos_filter'
+        nft_set_name = f'FQDN_{set_name}'
+
+        ip_list = resolve([domain], ipv6=True)
+        if (table, nft_set_name) in valid_sets:
+            conf_lines += nft_output(table, nft_set_name, ip_list)
+        count += 1
+
+    nft_conf_str = "\n".join(conf_lines) + "\n"
+    code = run(f'nft -f -', input=nft_conf_str)
+
+    print(f'Updated {count} sets - result: {code}')
+
+if __name__ == '__main__':
+    print(f'VyOS domain resolver')
+
+    count = 1
+    while commit_in_progress():
+        if ( count % 60 == 0 ):
+            print(f'Commit still in progress after {count}s - waiting')
+        count += 1
+        time.sleep(1)
+
+    conf = ConfigTreeQuery()
+    firewall = get_config(conf)
+
+    print(f'interval: {timeout}s - cache: {cache}')
+
+    while True:
+        update(firewall)
+        time.sleep(timeout)
diff --git a/src/helpers/vyos-failover.py b/src/helpers/vyos-failover.py
new file mode 100755
index 000000000..1ac193423
--- /dev/null
+++ b/src/helpers/vyos-failover.py
@@ -0,0 +1,184 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import argparse
+import json
+import subprocess
+import socket
+import time
+
+from vyos.util import rc_cmd
+from pathlib import Path
+from systemd import journal
+
+
+my_name = Path(__file__).stem
+
+
+def get_best_route_options(route, debug=False):
+    """
+    Return current best route ('gateway, interface, metric)
+
+    % get_best_route_options('203.0.113.1')
+    ('192.168.0.1', 'eth1', 1)
+
+    % get_best_route_options('203.0.113.254')
+    (None, None, None)
+    """
+    rc, data = rc_cmd(f'ip --detail --json route show protocol failover {route}')
+    if rc == 0:
+        data = json.loads(data)
+        if len(data) == 0:
+            print(f'\nRoute {route} for protocol failover was not found')
+            return None, None, None
+        # Fake metric 999 by default
+        # Search route with the lowest metric
+        best_metric = 999
+        for entry in data:
+            if debug: print('\n', entry)
+            metric = entry.get('metric')
+            gateway = entry.get('gateway')
+            iface = entry.get('dev')
+            if metric < best_metric:
+                best_metric = metric
+                best_gateway = gateway
+                best_interface = iface
+        if debug:
+            print(f'### Best_route exists: {route}, best_gateway: {best_gateway}, '
+                  f'best_metric: {best_metric}, best_iface: {best_interface}')
+        return best_gateway, best_interface, best_metric
+
+def is_port_open(ip, port):
+    """
+    Check connection to remote host and port
+    Return True if host alive
+
+    % is_port_open('example.com', 8080)
+    True
+    """
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP)
+    s.settimeout(2)
+    try:
+        s.connect((ip, int(port)))
+        s.shutdown(socket.SHUT_RDWR)
+        return True
+    except:
+        return False
+    finally:
+        s.close()
+
+def is_target_alive(target=None, iface='', proto='icmp', port=None, debug=False):
+    """
+    Host availability check by ICMP, ARP, TCP
+    Return True if target checks is successful
+
+    % is_target_alive('192.0.2.1', 'eth1', proto='arp')
+    True
+    """
+    if iface != '':
+        iface = f'-I {iface}'
+    if proto == 'icmp':
+        command = f'/usr/bin/ping -q {target} {iface} -n -c 2 -W 1'
+        rc, response = rc_cmd(command)
+        if debug: print(f'    [ CHECK-TARGET ]: [{command}] -- return-code [RC: {rc}]')
+        if rc == 0:
+            return True
+    elif proto == 'arp':
+        command = f'/usr/bin/arping -b -c 2 -f -w 1 -i 1 {iface} {target}'
+        rc, response = rc_cmd(command)
+        if debug: print(f'    [ CHECK-TARGET ]: [{command}] -- return-code [RC: {rc}]')
+        if rc == 0:
+            return True
+    elif proto == 'tcp' and port is not None:
+        return True if is_port_open(target, port) else False
+    else:
+        return False
+
+
+if __name__ == '__main__':
+    # Parse command arguments and get config
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-c',
+                        '--config',
+                        action='store',
+                        help='Path to protocols failover configuration',
+                        required=True,
+                        type=Path)
+
+    args = parser.parse_args()
+    try:
+        config_path = Path(args.config)
+        config = json.loads(config_path.read_text())
+    except Exception as err:
+        print(
+            f'Configuration file "{config_path}" does not exist or malformed: {err}'
+        )
+        exit(1)
+
+    # Useful debug info to console, use debug = True
+    # sudo systemctl stop vyos-failover.service
+    # sudo /usr/libexec/vyos/vyos-failover.py --config /run/vyos-failover.conf
+    debug = False
+
+    while(True):
+
+        for route, route_config in config.get('route').items():
+
+            exists_route = exists_gateway, exists_iface, exists_metric =  get_best_route_options(route, debug=debug)
+
+            for next_hop, nexthop_config in route_config.get('next_hop').items():
+                conf_iface = nexthop_config.get('interface')
+                conf_metric = int(nexthop_config.get('metric'))
+                port = nexthop_config.get('check').get('port')
+                port_opt = f'port {port}' if port else ''
+                proto = nexthop_config.get('check').get('type')
+                target = nexthop_config.get('check').get('target')
+                timeout = nexthop_config.get('check').get('timeout')
+
+                # Best route not fonund in the current routing table
+                if exists_route == (None, None, None):
+                    if debug: print(f"    [NEW_ROUTE_DETECTED] route: [{route}]")
+                    # Add route if check-target alive
+                    if is_target_alive(target, conf_iface, proto, port, debug=debug):
+                        if debug: print(f'    [ ADD ] -- ip route add {route} via {next_hop} dev {conf_iface} '
+                                        f'metric {conf_metric} proto failover\n###')
+                        rc, command = rc_cmd(f'ip route add {route} via {next_hop} dev {conf_iface} '
+                                             f'metric {conf_metric} proto failover')
+                        # If something is wrong and gateway not added
+                        # Example: Error: Next-hop has invalid gateway.
+                        if rc !=0:
+                            if debug: print(f'{command} -- return-code [RC: {rc}] {next_hop} dev {conf_iface}')
+                        else:
+                            journal.send(f'ip route add {route} via {next_hop} dev {conf_iface} '
+                                         f'metric {conf_metric} proto failover', SYSLOG_IDENTIFIER=my_name)
+                    else:
+                        if debug: print(f'    [ TARGET_FAIL ] target checks fails for [{target}], do nothing')
+                        journal.send(f'Check fail for route {route} target {target} proto {proto} '
+                                     f'{port_opt}', SYSLOG_IDENTIFIER=my_name)
+
+                # Route was added, check if the target is alive
+                # We should delete route if check fails only if route exists in the routing table
+                if not is_target_alive(target, conf_iface, proto, port, debug=debug) and \
+                        exists_route != (None, None, None):
+                    if debug:
+                        print(f'Nexh_hop {next_hop} fail, target not response')
+                        print(f'    [ DEL ] -- ip route del {route} via {next_hop} dev {conf_iface} '
+                              f'metric {conf_metric} proto failover [DELETE]')
+                    rc_cmd(f'ip route del {route} via {next_hop} dev {conf_iface} metric {conf_metric} proto failover')
+                    journal.send(f'ip route del {route} via {next_hop} dev {conf_iface} '
+                                 f'metric {conf_metric} proto failover', SYSLOG_IDENTIFIER=my_name)
+
+                time.sleep(int(timeout))
diff --git a/src/migration-scripts/https/3-to-4 b/src/migration-scripts/https/3-to-4
new file mode 100755
index 000000000..5ee528b31
--- /dev/null
+++ b/src/migration-scripts/https/3-to-4
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# T4768 rename node 'gql' to 'graphql'.
+
+import sys
+
+from vyos.configtree import ConfigTree
+
+if (len(sys.argv) < 2):
+    print("Must specify file name!")
+    sys.exit(1)
+
+file_name = sys.argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+config = ConfigTree(config_file)
+
+old_base = ['service', 'https', 'api', 'gql']
+if not config.exists(old_base):
+    # Nothing to do
+    sys.exit(0)
+
+new_base = ['service', 'https', 'api', 'graphql']
+config.set(new_base)
+
+nodes = config.list_nodes(old_base)
+for node in nodes:
+    config.copy(old_base + [node], new_base + [node])
+
+config.delete(old_base)
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print("Failed to save the modified config: {}".format(e))
+    sys.exit(1)
diff --git a/src/migration-scripts/policy/4-to-5 b/src/migration-scripts/policy/4-to-5
new file mode 100755
index 000000000..33c9e6ade
--- /dev/null
+++ b/src/migration-scripts/policy/4-to-5
@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# T2199: Migrate interface policy nodes to policy route <name> interface <ifname>
+
+import re
+
+from sys import argv
+from sys import exit
+
+from vyos.configtree import ConfigTree
+from vyos.ifconfig import Section
+
+if (len(argv) < 1):
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+base4 = ['policy', 'route']
+base6 = ['policy', 'route6']
+config = ConfigTree(config_file)
+
+if not config.exists(base4) and not config.exists(base6):
+    # Nothing to do
+    exit(0)
+
+def migrate_interface(config, iftype, ifname, vif=None, vifs=None, vifc=None):
+    if_path = ['interfaces', iftype, ifname]
+    ifname_full = ifname
+
+    if vif:
+        if_path += ['vif', vif]
+        ifname_full = f'{ifname}.{vif}'
+    elif vifs:
+        if_path += ['vif-s', vifs]
+        ifname_full = f'{ifname}.{vifs}'
+        if vifc:
+            if_path += ['vif-c', vifc]
+            ifname_full = f'{ifname}.{vifs}.{vifc}'
+
+    if not config.exists(if_path + ['policy']):
+        return
+
+    if config.exists(if_path + ['policy', 'route']):
+        route_name = config.return_value(if_path + ['policy', 'route'])
+        config.set(base4 + [route_name, 'interface'], value=ifname_full, replace=False)
+
+    if config.exists(if_path + ['policy', 'route6']):
+        route_name = config.return_value(if_path + ['policy', 'route6'])
+        config.set(base6 + [route_name, 'interface'], value=ifname_full, replace=False)
+
+    config.delete(if_path + ['policy'])
+
+for iftype in config.list_nodes(['interfaces']):
+    for ifname in config.list_nodes(['interfaces', iftype]):
+        migrate_interface(config, iftype, ifname)
+
+        if config.exists(['interfaces', iftype, ifname, 'vif']):
+            for vif in config.list_nodes(['interfaces', iftype, ifname, 'vif']):
+                migrate_interface(config, iftype, ifname, vif=vif)
+
+        if config.exists(['interfaces', iftype, ifname, 'vif-s']):
+            for vifs in config.list_nodes(['interfaces', iftype, ifname, 'vif-s']):
+                migrate_interface(config, iftype, ifname, vifs=vifs)
+
+                if config.exists(['interfaces', iftype, ifname, 'vif-s', vifs, 'vif-c']):
+                    for vifc in config.list_nodes(['interfaces', iftype, ifname, 'vif-s', vifs, 'vif-c']):
+                        migrate_interface(config, iftype, ifname, vifs=vifs, vifc=vifc)
+
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print("Failed to save the modified config: {}".format(e))
+    exit(1)
diff --git a/src/op_mode/accelppp.py b/src/op_mode/accelppp.py
new file mode 100755
index 000000000..2fd045dc3
--- /dev/null
+++ b/src/op_mode/accelppp.py
@@ -0,0 +1,133 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import sys
+
+import vyos.accel_ppp
+import vyos.opmode
+
+from vyos.configquery import ConfigTreeQuery
+from vyos.util import rc_cmd
+
+
+accel_dict = {
+    'ipoe': {
+        'port': 2002,
+        'path': 'service ipoe-server'
+    },
+    'pppoe': {
+        'port': 2001,
+        'path': 'service pppoe-server'
+    },
+    'pptp': {
+        'port': 2003,
+        'path': 'vpn pptp'
+    },
+    'l2tp': {
+        'port': 2004,
+        'path': 'vpn l2tp'
+    },
+    'sstp': {
+        'port': 2005,
+        'path': 'vpn sstp'
+    }
+}
+
+
+def _get_raw_statistics(accel_output, pattern):
+    return vyos.accel_ppp.get_server_statistics(accel_output, pattern, sep=':')
+
+
+def _get_raw_sessions(port):
+    cmd_options = 'show sessions ifname,username,ip,ip6,ip6-dp,type,state,' \
+                  'uptime-raw,calling-sid,called-sid,sid,comp,rx-bytes-raw,' \
+                  'tx-bytes-raw,rx-pkts,tx-pkts'
+    output = vyos.accel_ppp.accel_cmd(port, cmd_options)
+    parsed_data: list[dict[str, str]] = vyos.accel_ppp.accel_out_parse(
+        output.splitlines())
+    return parsed_data
+
+
+def _verify(func):
+    """Decorator checks if accel-ppp protocol
+    ipoe/pppoe/pptp/l2tp/sstp is configured
+
+    for example:
+        service ipoe-server
+        vpn sstp
+    """
+    from functools import wraps
+
+    @wraps(func)
+    def _wrapper(*args, **kwargs):
+        config = ConfigTreeQuery()
+        protocol_list = accel_dict.keys()
+        protocol = kwargs.get('protocol')
+        # unknown or incorrect protocol query
+        if protocol not in protocol_list:
+            unconf_message = f'unknown protocol "{protocol}"'
+            raise vyos.opmode.UnconfiguredSubsystem(unconf_message)
+        # Check if config does not exist
+        config_protocol_path = accel_dict[protocol]['path']
+        if not config.exists(config_protocol_path):
+            unconf_message = f'"{config_protocol_path}" is not configured'
+            raise vyos.opmode.UnconfiguredSubsystem(unconf_message)
+        return func(*args, **kwargs)
+
+    return _wrapper
+
+
+@_verify
+def show_statistics(raw: bool, protocol: str):
+    """show accel-cmd statistics
+    CPU utilization and amount of sessions
+
+    protocol: ipoe/pppoe/ppptp/l2tp/sstp
+    """
+    pattern = f'{protocol}:'
+    port = accel_dict[protocol]['port']
+    rc, output = rc_cmd(f'/usr/bin/accel-cmd -p {port} show stat')
+
+    if raw:
+        return _get_raw_statistics(output, pattern)
+
+    return output
+
+
+@_verify
+def show_sessions(raw: bool, protocol: str):
+    """show accel-cmd sessions
+
+    protocol: ipoe/pppoe/ppptp/l2tp/sstp
+    """
+    port = accel_dict[protocol]['port']
+    if raw:
+        return _get_raw_sessions(port)
+
+    return vyos.accel_ppp.accel_cmd(port,
+                                    'show sessions ifname,username,ip,ip6,ip6-dp,'
+                                    'calling-sid,rate-limit,state,uptime,rx-bytes,tx-bytes')
+
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)
diff --git a/src/op_mode/bgp.py b/src/op_mode/bgp.py
new file mode 100755
index 000000000..23001a9d7
--- /dev/null
+++ b/src/op_mode/bgp.py
@@ -0,0 +1,120 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Purpose:
+#    Displays bgp neighbors information.
+#    Used by the "show bgp (vrf <tag>) ipv4|ipv6 neighbors" commands.
+
+import re
+import sys
+import typing
+
+import jmespath
+from jinja2 import Template
+from humps import decamelize
+
+from vyos.configquery import ConfigTreeQuery
+
+import vyos.opmode
+
+
+frr_command_template = Template("""
+{% if family %}
+    show bgp
+        {{ 'vrf ' ~ vrf if vrf else '' }}
+        {{ 'ipv6' if family == 'inet6' else 'ipv4'}}
+        {{ 'neighbor ' ~ peer if peer else 'summary' }}
+{% endif %}
+
+{% if raw %}
+    json
+{% endif %}
+""")
+
+
+def _verify(func):
+    """Decorator checks if BGP config exists
+    BGP configuration can be present under vrf <tag>
+    If we do npt get arg 'peer' then it can be 'bgp summary'
+    """
+    from functools import wraps
+
+    @wraps(func)
+    def _wrapper(*args, **kwargs):
+        config = ConfigTreeQuery()
+        afi = 'ipv6' if kwargs.get('family') == 'inet6' else 'ipv4'
+        global_vrfs = ['all', 'default']
+        peer = kwargs.get('peer')
+        vrf = kwargs.get('vrf')
+        unconf_message = f'BGP or neighbor is not configured'
+        # Add option to check the specific neighbor if we have arg 'peer'
+        peer_opt = f'neighbor {peer} address-family {afi}-unicast' if peer else ''
+        vrf_opt = ''
+        if vrf and vrf not in global_vrfs:
+            vrf_opt = f'vrf name {vrf}'
+        # Check if config does not exist
+        if not config.exists(f'{vrf_opt} protocols bgp {peer_opt}'):
+            raise vyos.opmode.UnconfiguredSubsystem(unconf_message)
+        return func(*args, **kwargs)
+
+    return _wrapper
+
+
+@_verify
+def show_neighbors(raw: bool,
+                   family: str,
+                   peer: typing.Optional[str],
+                   vrf: typing.Optional[str]):
+    kwargs = dict(locals())
+    frr_command = frr_command_template.render(kwargs)
+    frr_command = re.sub(r'\s+', ' ', frr_command)
+
+    from vyos.util import cmd
+    output = cmd(f"vtysh -c '{frr_command}'")
+
+    if raw:
+        from json import loads
+        data = loads(output)
+        # Get list of the peers
+        peers = jmespath.search('*.peers | [0]', data)
+        if peers:
+            # Create new dict, delete old key 'peers'
+            # add key 'peers' neighbors to the list
+            list_peers = []
+            new_dict = jmespath.search('* | [0]', data)
+            if 'peers' in new_dict:
+                new_dict.pop('peers')
+
+                for neighbor, neighbor_options in peers.items():
+                    neighbor_options['neighbor'] = neighbor
+                    list_peers.append(neighbor_options)
+                new_dict['peers'] = list_peers
+            return decamelize(new_dict)
+        data = jmespath.search('* | [0]', data)
+        return decamelize(data)
+
+    else:
+        return output
+
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)
diff --git a/src/op_mode/bridge.py b/src/op_mode/bridge.py
index 5a821a287..d6098c158 100755
--- a/src/op_mode/bridge.py
+++ b/src/op_mode/bridge.py
@@ -32,7 +32,7 @@ def _get_json_data():
     """
     Get bridge data format JSON
     """
-    return cmd(f'sudo bridge --json link show')
+    return cmd(f'bridge --json link show')
 
 
 def _get_raw_data_summary():
@@ -48,7 +48,7 @@ def _get_raw_data_vlan():
     """
     :returns dict
     """
-    json_data = cmd('sudo bridge --json --compressvlans vlan show')
+    json_data = cmd('bridge --json --compressvlans vlan show')
     data_dict = json.loads(json_data)
     return data_dict
 
@@ -57,7 +57,7 @@ def _get_raw_data_fdb(bridge):
     """Get MAC-address for the bridge brX
     :returns list
     """
-    code, json_data = rc_cmd(f'sudo bridge --json fdb show br {bridge}')
+    code, json_data = rc_cmd(f'bridge --json fdb show br {bridge}')
     # From iproute2 fdb.c, fdb_show() will only exit(-1) in case of
     # non-existent bridge device; raise error.
     if code == 255:
diff --git a/src/op_mode/connect_disconnect.py b/src/op_mode/connect_disconnect.py
index 936c20bcb..d39e88bf3 100755
--- a/src/op_mode/connect_disconnect.py
+++ b/src/op_mode/connect_disconnect.py
@@ -41,7 +41,7 @@ def check_ppp_running(interface):
 def connect(interface):
     """ Connect dialer interface """
 
-    if interface.startswith('ppp'):
+    if interface.startswith('pppoe') or interface.startswith('sstpc'):
         check_ppp_interface(interface)
         # Check if interface is already dialed
         if os.path.isdir(f'/sys/class/net/{interface}'):
@@ -62,7 +62,7 @@ def connect(interface):
 def disconnect(interface):
     """ Disconnect dialer interface """
 
-    if interface.startswith('ppp'):
+    if interface.startswith('pppoe') or interface.startswith('sstpc'):
         check_ppp_interface(interface)
 
         # Check if interface is already down
diff --git a/src/op_mode/dhcp.py b/src/op_mode/dhcp.py
new file mode 100755
index 000000000..07e9b7d6c
--- /dev/null
+++ b/src/op_mode/dhcp.py
@@ -0,0 +1,278 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import sys
+from ipaddress import ip_address
+import typing
+
+from datetime import datetime
+from sys import exit
+from tabulate import tabulate
+from isc_dhcp_leases import IscDhcpLeases
+
+from vyos.base import Warning
+from vyos.configquery import ConfigTreeQuery
+
+from vyos.util import cmd
+from vyos.util import dict_search
+from vyos.util import is_systemd_service_running
+
+import vyos.opmode
+
+
+config = ConfigTreeQuery()
+pool_key = "shared-networkname"
+
+
+def _in_pool(lease, pool):
+    if pool_key in lease.sets:
+        if lease.sets[pool_key] == pool:
+            return True
+    return False
+
+
+def _utc_to_local(utc_dt):
+    return datetime.fromtimestamp((datetime.fromtimestamp(utc_dt) - datetime(1970, 1, 1)).total_seconds())
+
+
+def _format_hex_string(in_str):
+    out_str = ""
+    # if input is divisible by 2, add : every 2 chars
+    if len(in_str) > 0 and len(in_str) % 2 == 0:
+        out_str = ':'.join(a+b for a,b in zip(in_str[::2], in_str[1::2]))
+    else:
+        out_str = in_str
+
+    return out_str
+
+
+def _find_list_of_dict_index(lst, key='ip', value='') -> int:
+    """
+    Find the index entry of list of dict matching the dict value
+    Exampe:
+        % lst = [{'ip': '192.0.2.1'}, {'ip': '192.0.2.2'}]
+        % _find_list_of_dict_index(lst, key='ip', value='192.0.2.2')
+        % 1
+    """
+    idx = next((index for (index, d) in enumerate(lst) if d[key] == value), None)
+    return idx
+
+
+def _get_raw_server_leases(family, pool=None) -> list:
+    """
+    Get DHCP server leases
+    :return list
+    """
+    lease_file = '/config/dhcpdv6.leases' if family == 'inet6' else '/config/dhcpd.leases'
+    data = []
+    leases = IscDhcpLeases(lease_file).get()
+    if pool is not None:
+        if config.exists(f'service dhcp-server shared-network-name {pool}'):
+            leases = list(filter(lambda x: _in_pool(x, pool), leases))
+    for lease in leases:
+        data_lease = {}
+        data_lease['ip'] = lease.ip
+        data_lease['state'] = lease.binding_state
+        data_lease['pool'] = lease.sets.get('shared-networkname', '')
+        data_lease['end'] = lease.end.timestamp()
+
+        if family == 'inet':
+            data_lease['hardware'] = lease.ethernet
+            data_lease['start'] = lease.start.timestamp()
+            data_lease['hostname'] = lease.hostname
+
+        if family == 'inet6':
+            data_lease['last_communication'] = lease.last_communication.timestamp()
+            data_lease['iaid_duid'] = _format_hex_string(lease.host_identifier_string)
+            lease_types_long = {'na': 'non-temporary', 'ta': 'temporary', 'pd': 'prefix delegation'}
+            data_lease['type'] = lease_types_long[lease.type]
+
+        data_lease['remaining'] = lease.end - datetime.utcnow()
+
+        if data_lease['remaining'].days >= 0:
+            # substraction gives us a timedelta object which can't be formatted with strftime
+            # so we use str(), split gets rid of the microseconds
+            data_lease['remaining'] = str(data_lease["remaining"]).split('.')[0]
+        else:
+            data_lease['remaining'] = ''
+
+        # Do not add old leases
+        if data_lease['remaining'] != '':
+            data.append(data_lease)
+
+        # deduplicate
+        checked = []
+        for entry in data:
+            addr = entry.get('ip')
+            if addr not in checked:
+                checked.append(addr)
+            else:
+                idx = _find_list_of_dict_index(data, key='ip', value=addr)
+                data.pop(idx)
+
+    return data
+
+
+def _get_formatted_server_leases(raw_data, family):
+    data_entries = []
+    if family == 'inet':
+        for lease in raw_data:
+            ipaddr = lease.get('ip')
+            hw_addr = lease.get('hardware')
+            state = lease.get('state')
+            start = lease.get('start')
+            start =  _utc_to_local(start).strftime('%Y/%m/%d %H:%M:%S')
+            end = lease.get('end')
+            end =  _utc_to_local(end).strftime('%Y/%m/%d %H:%M:%S')
+            remain = lease.get('remaining')
+            pool = lease.get('pool')
+            hostname = lease.get('hostname')
+            data_entries.append([ipaddr, hw_addr, state, start, end, remain, pool, hostname])
+
+        headers = ['IP Address', 'Hardware address', 'State', 'Lease start', 'Lease expiration', 'Remaining', 'Pool',
+                   'Hostname']
+
+    if family == 'inet6':
+        for lease in raw_data:
+            ipaddr = lease.get('ip')
+            state = lease.get('state')
+            start = lease.get('last_communication')
+            start =  _utc_to_local(start).strftime('%Y/%m/%d %H:%M:%S')
+            end = lease.get('end')
+            end =  _utc_to_local(end).strftime('%Y/%m/%d %H:%M:%S')
+            remain = lease.get('remaining')
+            lease_type = lease.get('type')
+            pool = lease.get('pool')
+            host_identifier = lease.get('iaid_duid')
+            data_entries.append([ipaddr, state, start, end, remain, lease_type, pool, host_identifier])
+
+        headers = ['IPv6 address', 'State', 'Last communication', 'Lease expiration', 'Remaining', 'Type', 'Pool',
+                   'IAID_DUID']
+
+    output = tabulate(data_entries, headers, numalign='left')
+    return output
+
+
+def _get_dhcp_pools(family='inet') -> list:
+    v = 'v6' if family == 'inet6' else ''
+    pools = config.list_nodes(f'service dhcp{v}-server shared-network-name')
+    return pools
+
+
+def _get_pool_size(pool, family='inet'):
+    v = 'v6' if family == 'inet6' else ''
+    base = f'service dhcp{v}-server shared-network-name {pool}'
+    size = 0
+    subnets = config.list_nodes(f'{base} subnet')
+    for subnet in subnets:
+        if family == 'inet6':
+            ranges = config.list_nodes(f'{base} subnet {subnet} address-range start')
+        else:
+            ranges = config.list_nodes(f'{base} subnet {subnet} range')
+        for range in ranges:
+            if family == 'inet6':
+                start = config.list_nodes(f'{base} subnet {subnet} address-range start')[0]
+                stop = config.value(f'{base} subnet {subnet} address-range start {start} stop')
+            else:
+                start = config.value(f'{base} subnet {subnet} range {range} start')
+                stop = config.value(f'{base} subnet {subnet} range {range} stop')
+            # Add +1 because both range boundaries are inclusive
+            size += int(ip_address(stop)) - int(ip_address(start)) + 1
+    return size
+
+
+def _get_raw_pool_statistics(family='inet', pool=None):
+    if pool is None:
+        pool = _get_dhcp_pools(family=family)
+    else:
+        pool = [pool]
+
+    v = 'v6' if family == 'inet6' else ''
+    stats = []
+    for p in pool:
+        subnet = config.list_nodes(f'service dhcp{v}-server shared-network-name {p} subnet')
+        size = _get_pool_size(family=family, pool=p)
+        leases = len(_get_raw_server_leases(family=family, pool=p))
+        use_percentage = round(leases / size * 100) if size != 0 else 0
+        pool_stats = {'pool': p, 'size': size, 'leases': leases,
+                      'available': (size - leases), 'use_percentage': use_percentage, 'subnet': subnet}
+        stats.append(pool_stats)
+    return stats
+
+
+def _get_formatted_pool_statistics(pool_data, family='inet'):
+    data_entries = []
+    for entry in pool_data:
+        pool = entry.get('pool')
+        size = entry.get('size')
+        leases = entry.get('leases')
+        available = entry.get('available')
+        use_percentage = entry.get('use_percentage')
+        use_percentage = f'{use_percentage}%'
+        data_entries.append([pool, size, leases, available, use_percentage])
+
+    headers = ['Pool', 'Size','Leases', 'Available', 'Usage']
+    output = tabulate(data_entries, headers, numalign='left')
+    return output
+
+
+def _verify(func):
+    """Decorator checks if DHCP(v6) config exists"""
+    from functools import wraps
+
+    @wraps(func)
+    def _wrapper(*args, **kwargs):
+        config = ConfigTreeQuery()
+        family = kwargs.get('family')
+        v = 'v6' if family == 'inet6' else ''
+        unconf_message = f'DHCP{v} server is not configured'
+        # Check if config does not exist
+        if not config.exists(f'service dhcp{v}-server'):
+            raise vyos.opmode.UnconfiguredSubsystem(unconf_message)
+        return func(*args, **kwargs)
+    return _wrapper
+
+
+@_verify
+def show_pool_statistics(raw: bool, family: str, pool: typing.Optional[str]):
+    pool_data = _get_raw_pool_statistics(family=family, pool=pool)
+    if raw:
+        return pool_data
+    else:
+        return _get_formatted_pool_statistics(pool_data, family=family)
+
+
+@_verify
+def show_server_leases(raw: bool, family: str):
+    # if dhcp server is down, inactive leases may still be shown as active, so warn the user.
+    if not is_systemd_service_running('isc-dhcp-server.service'):
+        Warning('DHCP server is configured but not started. Data may be stale.')
+
+    leases = _get_raw_server_leases(family)
+    if raw:
+        return leases
+    else:
+        return _get_formatted_server_leases(leases, family)
+
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)
diff --git a/src/op_mode/dns.py b/src/op_mode/dns.py
index 9e5b1040c..a0e47d7ad 100755
--- a/src/op_mode/dns.py
+++ b/src/op_mode/dns.py
@@ -54,10 +54,10 @@ def _data_to_dict(data, sep="\t") -> dict:
 
 
 def _get_raw_forwarding_statistics() -> dict:
-    command = cmd('sudo /usr/bin/rec_control --socket-dir=/run/powerdns get-all')
+    command = cmd('rec_control --socket-dir=/run/powerdns get-all')
     data = _data_to_dict(command)
     data['cache-size'] = "{0:.2f}".format( int(
-        cmd('sudo /usr/bin/rec_control --socket-dir=/run/powerdns get cache-bytes')) / 1024 )
+        cmd('rec_control --socket-dir=/run/powerdns get cache-bytes')) / 1024 )
     return data
 
 
diff --git a/src/op_mode/firewall.py b/src/op_mode/firewall.py
index 950feb625..46bda5f7e 100755
--- a/src/op_mode/firewall.py
+++ b/src/op_mode/firewall.py
@@ -63,7 +63,7 @@ def get_config_firewall(conf, name=None, ipv6=False, interfaces=True):
                                 get_first_key=True, no_tag_node_value_mangle=True)
     if firewall and interfaces:
         if name:
-            firewall['interface'] = []
+            firewall['interface'] = {}
         else:
             if 'name' in firewall:
                 for fw_name, name_conf in firewall['name'].items():
diff --git a/src/op_mode/generate_ipsec_debug_archive.py b/src/op_mode/generate_ipsec_debug_archive.py
new file mode 100755
index 000000000..1422559a8
--- /dev/null
+++ b/src/op_mode/generate_ipsec_debug_archive.py
@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from datetime import datetime
+from pathlib import Path
+from shutil import rmtree
+from socket import gethostname
+from sys import exit
+from tarfile import open as tar_open
+from vyos.util import rc_cmd
+
+# define a list of commands that needs to be executed
+CMD_LIST: list[str] = [
+    'ipsec status',
+    'swanctl -L',
+    'swanctl -l',
+    'swanctl -P',
+    'ip x sa show',
+    'ip x policy show',
+    'ip tunnel show',
+    'ip address',
+    'ip rule show',
+    'ip route | head -100',
+    'ip route show table 220'
+]
+JOURNALCTL_CMD: str = 'journalctl -b -n 10000 /usr/lib/ipsec/charon'
+
+# execute a command and save the output to a file
+def save_stdout(command: str, file: Path) -> None:
+    rc, stdout = rc_cmd(command)
+    body: str = f'''### {command} ###
+Command: {command}
+Exit code: {rc}
+Stdout:
+{stdout}
+
+'''
+    with file.open(mode='a') as f:
+        f.write(body)
+
+
+# get local host name
+hostname: str = gethostname()
+# get current time
+time_now: str = datetime.now().isoformat(timespec='seconds')
+
+# define a temporary directory for logs and collected data
+tmp_dir: Path = Path(f'/tmp/ipsec_debug_{time_now}')
+# set file paths
+ipsec_status_file: Path = Path(f'{tmp_dir}/ipsec_status.txt')
+journalctl_charon_file: Path = Path(f'{tmp_dir}/journalctl_charon.txt')
+archive_file: str = f'/tmp/ipsec_debug_{time_now}.tar.bz2'
+
+# create files
+tmp_dir.mkdir()
+ipsec_status_file.touch()
+journalctl_charon_file.touch()
+
+try:
+    # execute all commands
+    for command in CMD_LIST:
+        save_stdout(command, ipsec_status_file)
+    save_stdout(JOURNALCTL_CMD, journalctl_charon_file)
+
+    # create an archive
+    with tar_open(name=archive_file, mode='x:bz2') as tar_file:
+        tar_file.add(tmp_dir)
+
+    # inform user about success
+    print(f'Debug file is generated and located in {archive_file}')
+except Exception as err:
+    print(f'Error during generating a debug file: {err}')
+finally:
+    # cleanup
+    rmtree(tmp_dir)
+    exit()
diff --git a/src/op_mode/generate_ipsec_debug_archive.sh b/src/op_mode/generate_ipsec_debug_archive.sh
deleted file mode 100755
index 53d0a6eaa..000000000
--- a/src/op_mode/generate_ipsec_debug_archive.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env bash
-
-# Collecting IPSec Debug Information
-
-DATE=`date +%d-%m-%Y`
-
-a_CMD=(
-       "sudo ipsec status"
-       "sudo swanctl -L"
-       "sudo swanctl -l"
-       "sudo swanctl -P"
-       "sudo ip x sa show"
-       "sudo ip x policy show"
-       "sudo ip tunnel show"
-       "sudo ip address"
-       "sudo ip rule show"
-       "sudo ip route"
-       "sudo ip route show table 220"
-      )
-
-
-echo "DEBUG: ${DATE} on host \"$(hostname)\"" > /tmp/ipsec-status-${DATE}.txt
-date >> /tmp/ipsec-status-${DATE}.txt
-
-# Execute all DEBUG commands and save it to file
-for cmd in "${a_CMD[@]}"; do
-    echo -e "\n### ${cmd} ###" >> /tmp/ipsec-status-${DATE}.txt
-    ${cmd} >> /tmp/ipsec-status-${DATE}.txt 2>/dev/null
-done
-
-# Collect charon logs, build .tgz archive
-sudo journalctl /usr/lib/ipsec/charon > /tmp/journalctl-charon-${DATE}.txt && \
-sudo tar -zcvf /tmp/ipsec-debug-${DATE}.tgz /tmp/journalctl-charon-${DATE}.txt /tmp/ipsec-status-${DATE}.txt >& /dev/null
-sudo rm -f /tmp/journalctl-charon-${DATE}.txt /tmp/ipsec-status-${DATE}.txt
-
-echo "Debug file is generated and located in /tmp/ipsec-debug-${DATE}.tgz"
diff --git a/src/op_mode/generate_system_login_user.py b/src/op_mode/generate_system_login_user.py
new file mode 100755
index 000000000..8f8827b1b
--- /dev/null
+++ b/src/op_mode/generate_system_login_user.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import argparse
+import os
+
+from vyos.util import popen
+from secrets import token_hex
+from base64 import b32encode
+
+if os.geteuid() != 0:
+    exit("You need to have root privileges to run this script.\nPlease try again, this time using 'sudo'. Exiting.")
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-u", "--username", type=str, help='Username used for authentication', required=True)
+    parser.add_argument("-l", "--rate_limit", type=str, help='Limit number of logins (rate-limit) per rate-time (default: 3)',  default="3", required=False)
+    parser.add_argument("-t", "--rate_time", type=str, help='Limit number of logins (rate-limit) per rate-time (default: 30)', default="30", required=False)
+    parser.add_argument("-w", "--window_size", type=str, help='Set window of concurrently valid codes (default: 3)', default="3", required=False)
+    parser.add_argument("-i", "--interval", type=str, help='Duration of single time interval',  default="30", required=False)
+    parser.add_argument("-d", "--digits", type=str, help='The number of digits in the one-time password', default="6", required=False)
+    args = parser.parse_args()
+
+    hostname = os.uname()[1]
+    username = args.username
+    rate_limit = args.rate_limit
+    rate_time = args.rate_time
+    window_size = args.window_size
+    digits = args.digits
+    period = args.interval
+
+    # check variables:
+    if int(rate_limit) < 1 or int(rate_limit) > 10:
+        print("")
+        quit("Number of logins (rate-limit) must be between '1' and '10'")
+
+    if int(rate_time) < 15 or int(rate_time) > 600:
+        print("")
+        quit("The rate-time must be between '15' and '600' seconds")
+
+    if int(window_size) < 1 or int(window_size) > 21:
+        print("")
+        quit("Window of concurrently valid codes must be between '1' and '21' seconds")
+
+    # generate OTP key, URL & QR:
+    key_hex = token_hex(20)
+    key_base32 = b32encode(bytes.fromhex(key_hex)).decode()
+
+    otp_url=''.join(["otpauth://totp/",username,"@",hostname,"?secret=",key_base32,"&digits=",digits,"&period=",period])
+    qrcode,err = popen('qrencode -t ansiutf8', input=otp_url)
+
+    print("# You can share it with the user, he just needs to scan the QR in his OTP app")
+    print("# username: ", username)
+    print("# OTP KEY: ", key_base32)
+    print("# OTP URL: ", otp_url)
+    print(qrcode)
+    print('# To add this OTP key to configuration, run the following commands:')
+    print(f"set system login user {username} authentication otp key '{key_base32}'")
+    if rate_limit != "3":
+        print(f"set system login user {username} authentication otp rate-limit '{rate_limit}'")
+    if rate_time != "30":
+        print(f"set system login user {username} authentication otp rate-time '{rate_time}'")
+    if window_size != "3":
+        print(f"set system login user {username} authentication otp window-size '{window_size}'")
diff --git a/src/op_mode/ipsec.py b/src/op_mode/ipsec.py
index 7ec35d7bd..e0d204a0a 100755
--- a/src/op_mode/ipsec.py
+++ b/src/op_mode/ipsec.py
@@ -14,13 +14,16 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import os
 import re
 import sys
+import typing
 
 from collections import OrderedDict
 from hurry import filesize
 from re import split as re_split
 from tabulate import tabulate
+from subprocess import TimeoutExpired
 
 from vyos.util import call
 from vyos.util import convert_data
@@ -43,7 +46,10 @@ def _alphanum_key(key):
 def _get_vici_sas():
     from vici import Session as vici_session
 
-    session = vici_session()
+    try:
+        session = vici_session()
+    except Exception:
+        raise vyos.opmode.UnconfiguredSubsystem("IPsec not initialized")
     sas = list(session.list_sas())
     return sas
 
@@ -132,41 +138,305 @@ def _get_formatted_output_sas(sas):
     return output
 
 
-def get_peer_connections(peer, tunnel, return_all = False):
+# Connections block
+def _get_vici_connections():
+    from vici import Session as vici_session
+
+    try:
+        session = vici_session()
+    except Exception:
+        raise vyos.opmode.UnconfiguredSubsystem("IPsec not initialized")
+    connections = list(session.list_conns())
+    return connections
+
+
+def _get_convert_data_connections():
+    get_connections = _get_vici_connections()
+    connections = convert_data(get_connections)
+    return connections
+
+
+def _get_parent_sa_proposal(connection_name: str, data: list) -> dict:
+    """Get parent SA proposals by connection name
+    if connections not in the 'down' state
+
+    Args:
+        connection_name (str): Connection name
+        data (list): List of current SAs from vici
+
+    Returns:
+        str: Parent SA connection proposal
+             AES_CBC/256/HMAC_SHA2_256_128/MODP_1024
+    """
+    if not data:
+        return {}
+    for sa in data:
+        # check if parent SA exist
+        if connection_name not in sa.keys():
+            return {}
+        if 'encr-alg' in sa[connection_name]:
+            encr_alg = sa.get(connection_name, '').get('encr-alg')
+            cipher = encr_alg.split('_')[0]
+            mode = encr_alg.split('_')[1]
+            encr_keysize = sa.get(connection_name, '').get('encr-keysize')
+            integ_alg = sa.get(connection_name, '').get('integ-alg')
+            # prf_alg = sa.get(connection_name, '').get('prf-alg')
+            dh_group = sa.get(connection_name, '').get('dh-group')
+            proposal = {
+                'cipher': cipher,
+                'mode': mode,
+                'key_size': encr_keysize,
+                'hash': integ_alg,
+                'dh': dh_group
+            }
+            return proposal
+        return {}
+
+
+def _get_parent_sa_state(connection_name: str, data: list) -> str:
+    """Get parent SA state by connection name
+
+    Args:
+        connection_name (str): Connection name
+        data (list): List of current SAs from vici
+
+    Returns:
+        Parent SA connection state
+    """
+    if not data:
+        return 'down'
+    for sa in data:
+        # check if parent SA exist
+        if connection_name not in sa.keys():
+            return 'down'
+        if sa[connection_name]['state'].lower() == 'established':
+            return 'up'
+        else:
+            return 'down'
+
+
+def _get_child_sa_state(connection_name: str, tunnel_name: str,
+                        data: list) -> str:
+    """Get child SA state by connection and tunnel name
+
+    Args:
+        connection_name (str): Connection name
+        tunnel_name (str): Tunnel name
+        data (list): List of current SAs from vici
+
+    Returns:
+        str: `up` if child SA state is 'installed' otherwise `down`
+    """
+    if not data:
+        return 'down'
+    for sa in data:
+        # check if parent SA exist
+        if connection_name not in sa.keys():
+            return 'down'
+        child_sas = sa[connection_name]['child-sas']
+        # Get all child SA states
+        # there can be multiple SAs per tunnel
+        child_sa_states = [
+            v['state'] for k, v in child_sas.items() if v['name'] == tunnel_name
+        ]
+        return 'up' if 'INSTALLED' in child_sa_states else 'down'
+
+
+def _get_child_sa_info(connection_name: str, tunnel_name: str,
+                       data: list) -> dict:
+    """Get child SA installed info by connection and tunnel name
+
+    Args:
+        connection_name (str): Connection name
+        tunnel_name (str): Tunnel name
+        data (list): List of current SAs from vici
+
+    Returns:
+        dict: Info of the child SA in the dictionary format
+    """
+    for sa in data:
+        # check if parent SA exist
+        if connection_name not in sa.keys():
+            return {}
+        child_sas = sa[connection_name]['child-sas']
+        # Get all child SA data
+        # Skip temp SA name (first key), get only SA values as dict
+        # {'OFFICE-B-tunnel-0-46': {'name': 'OFFICE-B-tunnel-0'}...}
+        # i.e get all data after 'OFFICE-B-tunnel-0-46'
+        child_sa_info = [
+            v for k, v in child_sas.items() if 'name' in v and
+            v['name'] == tunnel_name and v['state'] == 'INSTALLED'
+        ]
+        return child_sa_info[-1] if child_sa_info else {}
+
+
+def _get_child_sa_proposal(child_sa_data: dict) -> dict:
+    if child_sa_data and 'encr-alg' in child_sa_data:
+        encr_alg = child_sa_data.get('encr-alg')
+        cipher = encr_alg.split('_')[0]
+        mode = encr_alg.split('_')[1]
+        key_size = child_sa_data.get('encr-keysize')
+        integ_alg = child_sa_data.get('integ-alg')
+        dh_group = child_sa_data.get('dh-group')
+        proposal = {
+            'cipher': cipher,
+            'mode': mode,
+            'key_size': key_size,
+            'hash': integ_alg,
+            'dh': dh_group
+        }
+        return proposal
+    return {}
+
+
+def _get_raw_data_connections(list_connections: list, list_sas: list) -> list:
+    """Get configured VPN IKE connections and IPsec states
+
+    Args:
+        list_connections (list): List of configured connections from vici
+        list_sas (list): List of current SAs from vici
+
+    Returns:
+        list: List and status of IKE/IPsec connections/tunnels
+    """
+    base_dict = []
+    for connections in list_connections:
+        base_list = {}
+        for connection, conn_conf in connections.items():
+            base_list['ike_connection_name'] = connection
+            base_list['ike_connection_state'] = _get_parent_sa_state(
+                connection, list_sas)
+            base_list['ike_remote_address'] = conn_conf['remote_addrs']
+            base_list['ike_proposal'] = _get_parent_sa_proposal(
+                connection, list_sas)
+            base_list['local_id'] = conn_conf.get('local-1', '').get('id')
+            base_list['remote_id'] = conn_conf.get('remote-1', '').get('id')
+            base_list['version'] = conn_conf.get('version', 'IKE')
+            base_list['children'] = []
+            children = conn_conf['children']
+            for tunnel, tun_options in children.items():
+                state = _get_child_sa_state(connection, tunnel, list_sas)
+                local_ts = tun_options.get('local-ts')
+                remote_ts = tun_options.get('remote-ts')
+                dpd_action = tun_options.get('dpd_action')
+                close_action = tun_options.get('close_action')
+                sa_info = _get_child_sa_info(connection, tunnel, list_sas)
+                esp_proposal = _get_child_sa_proposal(sa_info)
+                base_list['children'].append({
+                    'name': tunnel,
+                    'state': state,
+                    'local_ts': local_ts,
+                    'remote_ts': remote_ts,
+                    'dpd_action': dpd_action,
+                    'close_action': close_action,
+                    'sa': sa_info,
+                    'esp_proposal': esp_proposal
+                })
+        base_dict.append(base_list)
+    return base_dict
+
+
+def _get_raw_connections_summary(list_conn, list_sas):
+    import jmespath
+    data = _get_raw_data_connections(list_conn, list_sas)
+    match = '[*].children[]'
+    child = jmespath.search(match, data)
+    tunnels_down = len([k for k in child if k['state'] == 'down'])
+    tunnels_up = len([k for k in child if k['state'] == 'up'])
+    tun_dict = {
+        'tunnels': child,
+        'total': len(child),
+        'down': tunnels_down,
+        'up': tunnels_up
+    }
+    return tun_dict
+
+
+def _get_formatted_output_conections(data):
+    from tabulate import tabulate
+    data_entries = ''
+    connections = []
+    for entry in data:
+        tunnels = []
+        ike_name = entry['ike_connection_name']
+        ike_state = entry['ike_connection_state']
+        conn_type = entry.get('version', 'IKE')
+        remote_addrs = ','.join(entry['ike_remote_address'])
+        local_ts, remote_ts = '-', '-'
+        local_id = entry['local_id']
+        remote_id = entry['remote_id']
+        proposal = '-'
+        if entry.get('ike_proposal'):
+            proposal = (f'{entry["ike_proposal"]["cipher"]}_'
+                        f'{entry["ike_proposal"]["mode"]}/'
+                        f'{entry["ike_proposal"]["key_size"]}/'
+                        f'{entry["ike_proposal"]["hash"]}/'
+                        f'{entry["ike_proposal"]["dh"]}')
+        connections.append([
+            ike_name, ike_state, conn_type, remote_addrs, local_ts, remote_ts,
+            local_id, remote_id, proposal
+        ])
+        for tun in entry['children']:
+            tun_name = tun.get('name')
+            tun_state = tun.get('state')
+            conn_type = 'IPsec'
+            local_ts = '\n'.join(tun.get('local_ts'))
+            remote_ts = '\n'.join(tun.get('remote_ts'))
+            proposal = '-'
+            if tun.get('esp_proposal'):
+                proposal = (f'{tun["esp_proposal"]["cipher"]}_'
+                            f'{tun["esp_proposal"]["mode"]}/'
+                            f'{tun["esp_proposal"]["key_size"]}/'
+                            f'{tun["esp_proposal"]["hash"]}/'
+                            f'{tun["esp_proposal"]["dh"]}')
+            connections.append([
+                tun_name, tun_state, conn_type, remote_addrs, local_ts,
+                remote_ts, local_id, remote_id, proposal
+            ])
+    connection_headers = [
+        'Connection', 'State', 'Type', 'Remote address', 'Local TS',
+        'Remote TS', 'Local id', 'Remote id', 'Proposal'
+    ]
+    output = tabulate(connections, connection_headers, numalign='left')
+    return output
+
+
+# Connections block end
+
+
+def get_peer_connections(peer, tunnel):
     search = rf'^[\s]*({peer}-(tunnel-[\d]+|vti)).*'
     matches = []
+    if not os.path.exists(SWANCTL_CONF):
+        raise vyos.opmode.UnconfiguredSubsystem("IPsec not initialized")
+    suffix = None if tunnel is None else (f'tunnel-{tunnel}' if
+                                          tunnel.isnumeric() else tunnel)
     with open(SWANCTL_CONF, 'r') as f:
         for line in f.readlines():
             result = re.match(search, line)
             if result:
-                suffix = f'tunnel-{tunnel}' if tunnel.isnumeric() else tunnel
-                if return_all or (result[2] == suffix):
+                if tunnel is None:
                     matches.append(result[1])
+                else:
+                    if result[2] == suffix:
+                        matches.append(result[1])
     return matches
 
 
-def reset_peer(peer: str, tunnel:str):
-    if not peer:
-        print('Invalid peer, aborting')
-        return
-
-    conns = get_peer_connections(peer, tunnel, return_all = (not tunnel or tunnel == 'all'))
+def reset_peer(peer: str, tunnel:typing.Optional[str]):
+    conns = get_peer_connections(peer, tunnel)
 
     if not conns:
-        print('Tunnel(s) not found, aborting')
-        return
+        raise vyos.opmode.IncorrectValue('Peer or tunnel(s) not found, aborting')
 
-    result = True
     for conn in conns:
         try:
             call(f'sudo /usr/sbin/ipsec down {conn}{{*}}', timeout = 10)
             call(f'sudo /usr/sbin/ipsec up {conn}', timeout = 10)
         except TimeoutExpired as e:
-            print(f'Timed out while resetting {conn}')
-            result = False
-
+            raise vyos.opmode.InternalError(f'Timed out while resetting {conn}')
 
-    print('Peer reset result: ' + ('success' if result else 'failed'))
+    print('Peer reset result: success')
 
 
 def show_sa(raw: bool):
@@ -176,6 +446,23 @@ def show_sa(raw: bool):
     return _get_formatted_output_sas(sa_data)
 
 
+def show_connections(raw: bool):
+    list_conns = _get_convert_data_connections()
+    list_sas = _get_raw_data_sas()
+    if raw:
+        return _get_raw_data_connections(list_conns, list_sas)
+
+    connections = _get_raw_data_connections(list_conns, list_sas)
+    return _get_formatted_output_conections(connections)
+
+
+def show_connections_summary(raw: bool):
+    list_conns = _get_convert_data_connections()
+    list_sas = _get_raw_data_sas()
+    if raw:
+        return _get_raw_connections_summary(list_conns, list_sas)
+
+
 if __name__ == '__main__':
     try:
         res = vyos.opmode.run(sys.modules[__name__])
diff --git a/src/op_mode/log.py b/src/op_mode/log.py
new file mode 100755
index 000000000..b0abd6191
--- /dev/null
+++ b/src/op_mode/log.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import json
+import re
+import sys
+import typing
+
+from jinja2 import Template
+
+from vyos.util import rc_cmd
+
+import vyos.opmode
+
+journalctl_command_template = Template("""
+--no-hostname
+--quiet
+
+{% if boot %}
+  --boot
+{% endif %}
+
+{% if count %}
+  --lines={{ count }}
+{% endif %}
+
+{% if reverse %}
+  --reverse
+{% endif %}
+
+{% if since %}
+  --since={{ since }}
+{% endif %}
+
+{% if unit %}
+  --unit={{ unit }}
+{% endif %}
+
+{% if utc %}
+  --utc
+{% endif %}
+
+{% if raw %}
+{# By default show 100 only lines for raw option if count does not set #}
+{# Protection from parsing the full log by default #}
+{%    if not boot %}
+  --lines={{ '' ~ count if count else '100' }}
+{%    endif %}
+  --no-pager
+  --output=json
+{% endif %}
+""")
+
+
+def show(raw: bool,
+         boot: typing.Optional[bool],
+         count: typing.Optional[int],
+         facility: typing.Optional[str],
+         reverse: typing.Optional[bool],
+         utc: typing.Optional[bool],
+         unit: typing.Optional[str]):
+    kwargs = dict(locals())
+
+    journalctl_options = journalctl_command_template.render(kwargs)
+    journalctl_options = re.sub(r'\s+', ' ', journalctl_options)
+    rc, output = rc_cmd(f'journalctl {journalctl_options}')
+    if raw:
+        # Each 'journalctl --output json' line is a separate JSON object
+        # So we should return list of dict
+        return [json.loads(line) for line in output.split('\n')]
+    return output
+
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)
diff --git a/src/op_mode/memory.py b/src/op_mode/memory.py
index 178544be4..7666de646 100755
--- a/src/op_mode/memory.py
+++ b/src/op_mode/memory.py
@@ -20,7 +20,7 @@ import sys
 import vyos.opmode
 
 
-def _get_system_memory():
+def _get_raw_data():
     from re import search as re_search
 
     def find_value(keyword, mem_data):
@@ -38,7 +38,7 @@ def _get_system_memory():
 
     used = total - available
 
-    res = {
+    mem_data = {
       "total":   total,
       "free":    available,
       "used":    used,
@@ -46,24 +46,21 @@ def _get_system_memory():
       "cached":  cached
     }
 
-    return res
-
-def _get_system_memory_human():
-    from vyos.util import bytes_to_human
-
-    mem = _get_system_memory()
-
-    for key in mem:
+    for key in mem_data:
         # The Linux kernel exposes memory values in kilobytes,
         # so we need to normalize them
-        mem[key] = bytes_to_human(mem[key], initial_exponent=10)
+        mem_data[key] = mem_data[key] * 1024
 
-    return mem
-
-def _get_raw_data():
-    return _get_system_memory_human()
+    return mem_data
 
 def _get_formatted_output(mem):
+    from vyos.util import bytes_to_human
+
+    # For human-readable outputs, we convert bytes to more convenient units
+    # (100M, 1.3G...)
+    for key in mem:
+        mem[key] = bytes_to_human(mem[key])
+
     out = "Total: {}\n".format(mem["total"])
     out += "Free:  {}\n".format(mem["free"])
     out += "Used:  {}".format(mem["used"])
diff --git a/src/op_mode/nat.py b/src/op_mode/nat.py
index 845dbbb2c..f899eb3dc 100755
--- a/src/op_mode/nat.py
+++ b/src/op_mode/nat.py
@@ -22,12 +22,18 @@ import xmltodict
 from sys import exit
 from tabulate import tabulate
 
+from vyos.configquery import ConfigTreeQuery
+
 from vyos.util import cmd
 from vyos.util import dict_search
 
 import vyos.opmode
 
 
+base = 'nat'
+unconf_message = 'NAT is not configured'
+
+
 def _get_xml_translation(direction, family):
     """
     Get conntrack XML output --src-nat|--dst-nat
@@ -277,6 +283,20 @@ def _get_formatted_translation(dict_data, nat_direction, family):
     return output
 
 
+def _verify(func):
+    """Decorator checks if NAT config exists"""
+    from functools import wraps
+
+    @wraps(func)
+    def _wrapper(*args, **kwargs):
+        config = ConfigTreeQuery()
+        if not config.exists(base):
+            raise vyos.opmode.UnconfiguredSubsystem(unconf_message)
+        return func(*args, **kwargs)
+    return _wrapper
+
+
+@_verify
 def show_rules(raw: bool, direction: str, family: str):
     nat_rules = _get_raw_data_rules(direction, family)
     if raw:
@@ -285,6 +305,7 @@ def show_rules(raw: bool, direction: str, family: str):
         return _get_formatted_output_rules(nat_rules, direction, family)
 
 
+@_verify
 def show_statistics(raw: bool, direction: str, family: str):
     nat_statistics = _get_raw_data_rules(direction, family)
     if raw:
@@ -293,6 +314,7 @@ def show_statistics(raw: bool, direction: str, family: str):
         return _get_formatted_output_statistics(nat_statistics, direction)
 
 
+@_verify
 def show_translations(raw: bool, direction: str, family: str):
     family = 'ipv6' if family == 'inet6' else 'ipv4'
     nat_translation = _get_raw_translation(direction, family)
diff --git a/src/op_mode/openconnect.py b/src/op_mode/openconnect.py
index 00992c66a..b21890728 100755
--- a/src/op_mode/openconnect.py
+++ b/src/op_mode/openconnect.py
@@ -31,14 +31,7 @@ occtl_socket = '/run/ocserv/occtl.socket'
 def _get_raw_data_sessions():
     rc, out = rc_cmd(f'sudo {occtl} --json --socket-file {occtl_socket} show users')
     if rc != 0:
-        output = {'openconnect':
-            {
-                'configured': False,
-                'return_code': rc,
-                'reason': out
-            }
-        }
-        return output
+        raise vyos.opmode.DataUnavailable(out)
 
     sessions = json.loads(out)
     return sessions
@@ -61,9 +54,8 @@ def _get_formatted_sessions(data):
 
 def show_sessions(raw: bool):
     config = ConfigTreeQuery()
-    if not config.exists('vpn openconnect') and not raw:
-        print('Openconnect is not configured')
-        exit(0)
+    if not config.exists('vpn openconnect'):
+        raise vyos.opmode.UnconfiguredSubsystem('Openconnect is not configured')
 
     openconnect_data = _get_raw_data_sessions()
     if raw:
diff --git a/src/op_mode/openvpn.py b/src/op_mode/openvpn.py
new file mode 100755
index 000000000..3797a7153
--- /dev/null
+++ b/src/op_mode/openvpn.py
@@ -0,0 +1,220 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+#
+
+import os
+import sys
+from tabulate import tabulate
+
+import vyos.opmode
+from vyos.util import bytes_to_human
+from vyos.util import commit_in_progress
+from vyos.util import call
+from vyos.config import Config
+
+def _get_tunnel_address(peer_host, peer_port, status_file):
+    peer = peer_host + ':' + peer_port
+    lst = []
+
+    with open(status_file, 'r') as f:
+        lines = f.readlines()
+        for line in lines:
+            if peer in line:
+                lst.append(line)
+
+        # filter out subnet entries if iroute:
+        # in the case that one sets, say:
+        # [ ..., 'vtun10', 'server', 'client', 'client1', 'subnet','10.10.2.0/25']
+        # the status file will have an entry:
+        # 10.10.2.0/25,client1,...
+        lst = [l for l in lst[1:] if '/' not in l.split(',')[0]]
+
+        tunnel_ip = lst[0].split(',')[0]
+
+        return tunnel_ip
+
+def _get_interface_status(mode: str, interface: str) -> dict:
+    status_file = f'/run/openvpn/{interface}.status'
+
+    data = {
+        'mode': mode,
+        'intf': interface,
+        'local_host': '',
+        'local_port': '',
+        'date': '',
+        'clients': [],
+    }
+
+    if not os.path.exists(status_file):
+        raise vyos.opmode.DataUnavailable('No information for interface {interface}')
+
+    with open(status_file, 'r') as f:
+        lines = f.readlines()
+        for line_no, line in enumerate(lines):
+            # remove trailing newline character first
+            line = line.rstrip('\n')
+
+            # check first line header
+            if line_no == 0:
+                if mode == 'server':
+                    if not line == 'OpenVPN CLIENT LIST':
+                        raise vyos.opmode.InternalError('Expected "OpenVPN CLIENT LIST"')
+                else:
+                    if not line == 'OpenVPN STATISTICS':
+                        raise vyos.opmode.InternalError('Expected "OpenVPN STATISTICS"')
+
+                continue
+
+            # second line informs us when the status file has been last updated
+            if line_no == 1:
+                data['date'] = line.lstrip('Updated,').rstrip('\n')
+                continue
+
+            if mode == 'server':
+                # for line_no > 1, lines appear as follows:
+                #
+                # Common Name,Real Address,Bytes Received,Bytes Sent,Connected Since
+                # client1,172.18.202.10:55904,2880587,2882653,Fri Aug 23 16:25:48 2019
+                # client3,172.18.204.10:41328,2850832,2869729,Fri Aug 23 16:25:43 2019
+                # client2,172.18.203.10:48987,2856153,2871022,Fri Aug 23 16:25:45 2019
+                # ...
+                # ROUTING TABLE
+                # ...
+                if line_no >= 3:
+                    # indicator that there are no more clients
+                    if line == 'ROUTING TABLE':
+                        break
+                    # otherwise, get client data
+                    remote = (line.split(',')[1]).rsplit(':', maxsplit=1)
+
+                    client = {
+                        'name': line.split(',')[0],
+                        'remote_host': remote[0],
+                        'remote_port': remote[1],
+                        'tunnel': 'N/A',
+                        'rx_bytes': bytes_to_human(int(line.split(',')[2]),
+                                                   precision=1),
+                        'tx_bytes': bytes_to_human(int(line.split(',')[3]),
+                                                   precision=1),
+                        'online_since': line.split(',')[4]
+                    }
+                    client['tunnel'] = _get_tunnel_address(client['remote_host'],
+                                                           client['remote_port'],
+                                                           status_file)
+                    data['clients'].append(client)
+                    continue
+            else: # mode == 'client' or mode == 'site-to-site'
+                if line_no == 2:
+                    client = {
+                        'name': 'N/A',
+                        'remote_host': 'N/A',
+                        'remote_port': 'N/A',
+                        'tunnel': 'N/A',
+                        'rx_bytes': bytes_to_human(int(line.split(',')[1]),
+                                                   precision=1),
+                        'tx_bytes': '',
+                        'online_since': 'N/A'
+                    }
+                    continue
+
+                if line_no == 3:
+                    client['tx_bytes'] = bytes_to_human(int(line.split(',')[1]),
+                                                        precision=1)
+                    data['clients'].append(client)
+                    break
+
+    return data
+
+def _get_raw_data(mode: str) -> dict:
+    data = {}
+    conf = Config()
+    conf_dict = conf.get_config_dict(['interfaces', 'openvpn'],
+                                     get_first_key=True)
+    if not conf_dict:
+        return data
+
+    interfaces = [x for x in list(conf_dict) if conf_dict[x]['mode'] == mode]
+    for intf in interfaces:
+        data[intf] = _get_interface_status(mode, intf)
+        d = data[intf]
+        d['local_host'] = conf_dict[intf].get('local-host', '')
+        d['local_port'] = conf_dict[intf].get('local-port', '')
+        if mode in ['client', 'site-to-site']:
+            for client in d['clients']:
+                if 'shared-secret-key-file' in list(conf_dict[intf]):
+                    client['name'] = 'None (PSK)'
+                client['remote_host'] = conf_dict[intf].get('remote-host', [''])[0]
+                client['remote_port'] = conf_dict[intf].get('remote-port', '1194')
+
+    return data
+
+def _format_openvpn(data: dict) -> str:
+    if not data:
+        out = 'No OpenVPN interfaces configured'
+        return out
+
+    headers = ['Client CN', 'Remote Host', 'Tunnel IP', 'Local Host',
+               'TX bytes', 'RX bytes', 'Connected Since']
+
+    out = ''
+    data_out = []
+    for intf in list(data):
+        l_host = data[intf]['local_host']
+        l_port = data[intf]['local_port']
+        for client in list(data[intf]['clients']):
+            r_host = client['remote_host']
+            r_port = client['remote_port']
+
+            out += f'\nOpenVPN status on {intf}\n\n'
+            name = client['name']
+            remote = r_host + ':' + r_port if r_host and r_port else 'N/A'
+            tunnel = client['tunnel']
+            local = l_host + ':' + l_port if l_host and l_port else 'N/A'
+            tx_bytes = client['tx_bytes']
+            rx_bytes = client['rx_bytes']
+            online_since = client['online_since']
+            data_out.append([name, remote, tunnel, local, tx_bytes,
+                             rx_bytes, online_since])
+
+        out += tabulate(data_out, headers)
+
+    return out
+
+def show(raw: bool, mode: str) -> str:
+    openvpn_data = _get_raw_data(mode)
+
+    if raw:
+        return openvpn_data
+
+    return _format_openvpn(openvpn_data)
+
+def reset(interface: str):
+    if os.path.isfile(f'/run/openvpn/{interface}.conf'):
+        if commit_in_progress():
+            raise vyos.opmode.CommitInProgress('Retry OpenVPN reset: commit in progress.')
+        call(f'systemctl restart openvpn@{interface}.service')
+    else:
+        raise vyos.opmode.IncorrectValue(f'OpenVPN interface "{interface}" does not exist!')
+
+if __name__ == '__main__':
+    try:
+        res = vyos.opmode.run(sys.modules[__name__])
+        if res:
+            print(res)
+    except (ValueError, vyos.opmode.Error) as e:
+        print(e)
+        sys.exit(1)
diff --git a/src/op_mode/ping.py b/src/op_mode/ping.py
index 60bbc0c78..610e63cb3 100755
--- a/src/op_mode/ping.py
+++ b/src/op_mode/ping.py
@@ -18,6 +18,25 @@ import os
 import sys
 import socket
 import ipaddress
+from vyos.util import get_all_vrfs
+from vyos.ifconfig import Section
+
+
+def interface_list() -> list:
+    """
+    Get list of interfaces in system
+    :rtype: list
+    """
+    return Section.interfaces()
+
+
+def vrf_list() -> list:
+    """
+    Get list of VRFs in system
+    :rtype: list
+    """
+    return list(get_all_vrfs().keys())
+
 
 options = {
     'audible': {
@@ -63,6 +82,7 @@ options = {
     'interface': {
         'ping': '{command} -I {value}',
         'type': '<interface>',
+        'helpfunction': interface_list,
         'help': 'Source interface'
     },
     'interval': {
@@ -128,6 +148,7 @@ options = {
         'ping': 'sudo ip vrf exec {value} {command}',
         'type': '<vrf>',
         'help': 'Use specified VRF table',
+        'helpfunction': vrf_list,
         'dflt': 'default',
     },
     'verbose': {
@@ -142,20 +163,33 @@ ping = {
 }
 
 
-class List (list):
-    def first (self):
+class List(list):
+    def first(self):
         return self.pop(0) if self else ''
 
     def last(self):
         return self.pop() if self else ''
 
-    def prepend(self,value):
-        self.insert(0,value)
+    def prepend(self, value):
+        self.insert(0, value)
+
+
+def completion_failure(option: str) -> None:
+    """
+    Shows failure message after TAB when option is wrong
+    :param option: failure option
+    :type str:
+    """
+    sys.stderr.write('\n\n Invalid option: {}\n\n'.format(option))
+    sys.stdout.write('<nocomps>')
+    sys.exit(1)
 
 
 def expension_failure(option, completions):
     reason = 'Ambiguous' if completions else 'Invalid'
-    sys.stderr.write('\n\n  {} command: {} [{}]\n\n'.format(reason,' '.join(sys.argv), option))
+    sys.stderr.write(
+        '\n\n  {} command: {} [{}]\n\n'.format(reason, ' '.join(sys.argv),
+                                               option))
     if completions:
         sys.stderr.write('  Possible completions:\n   ')
         sys.stderr.write('\n   '.join(completions))
@@ -196,28 +230,44 @@ if __name__ == '__main__':
     if host == '--get-options':
         args.first()  # pop ping
         args.first()  # pop IP
+        usedoptionslist = []
         while args:
-            option = args.first()
-
-            matched = complete(option)
+            option = args.first()  # pop option
+            matched = complete(option)  # get option parameters
+            usedoptionslist.append(option)  # list of used options
+            # Select options
             if not args:
+                # remove from Possible completions used options
+                for o in usedoptionslist:
+                    if o in matched:
+                        matched.remove(o)
                 sys.stdout.write(' '.join(matched))
                 sys.exit(0)
 
-            if len(matched) > 1 :
+            if len(matched) > 1:
                 sys.stdout.write(' '.join(matched))
                 sys.exit(0)
+            # If option doesn't have value
+            if matched:
+                if options[matched[0]]['type'] == 'noarg':
+                    continue
+            else:
+                # Unexpected option
+                completion_failure(option)
 
-            if options[matched[0]]['type'] == 'noarg':
-                continue
-
-            value = args.first()
+            value = args.first()  # pop option's value
             if not args:
                 matched = complete(option)
-                sys.stdout.write(options[matched[0]]['type'])
+                helplines = options[matched[0]]['type']
+                # Run helpfunction to get list of possible values
+                if 'helpfunction' in options[matched[0]]:
+                    result = options[matched[0]]['helpfunction']()
+                    if result:
+                        helplines = '\n' + ' '.join(result)
+                sys.stdout.write(helplines)
                 sys.exit(0)
 
-    for name,option in options.items():
+    for name, option in options.items():
         if 'dflt' in option and name not in args:
             args.append(name)
             args.append(option['dflt'])
@@ -234,8 +284,7 @@ if __name__ == '__main__':
     except ValueError:
         sys.exit(f'ping: Unknown host: {host}')
 
-    command = convert(ping[version],args)
+    command = convert(ping[version], args)
 
     # print(f'{command} {host}')
     os.system(f'{command} {host}')
-
diff --git a/src/op_mode/policy_route.py b/src/op_mode/policy_route.py
index 5be40082f..5953786f3 100755
--- a/src/op_mode/policy_route.py
+++ b/src/op_mode/policy_route.py
@@ -22,53 +22,13 @@ from vyos.config import Config
 from vyos.util import cmd
 from vyos.util import dict_search_args
 
-def get_policy_interfaces(conf, policy, name=None, ipv6=False):
-    interfaces = conf.get_config_dict(['interfaces'], key_mangling=('-', '_'),
-                                      get_first_key=True, no_tag_node_value_mangle=True)
-
-    routes = ['route', 'route6']
-
-    def parse_if(ifname, if_conf):
-        if 'policy' in if_conf:
-            for route in routes:
-                if route in if_conf['policy']:
-                    route_name = if_conf['policy'][route]
-                    name_str = f'({ifname},{route})'
-
-                    if not name:
-                        policy[route][route_name]['interface'].append(name_str)
-                    elif not ipv6 and name == route_name:
-                        policy['interface'].append(name_str)
-
-        for iftype in ['vif', 'vif_s', 'vif_c']:
-            if iftype in if_conf:
-                for vifname, vif_conf in if_conf[iftype].items():
-                    parse_if(f'{ifname}.{vifname}', vif_conf)
-
-    for iftype, iftype_conf in interfaces.items():
-        for ifname, if_conf in iftype_conf.items():
-            parse_if(ifname, if_conf)
-
-def get_config_policy(conf, name=None, ipv6=False, interfaces=True):
+def get_config_policy(conf, name=None, ipv6=False):
     config_path = ['policy']
     if name:
         config_path += ['route6' if ipv6 else 'route', name]
 
     policy = conf.get_config_dict(config_path, key_mangling=('-', '_'),
                                 get_first_key=True, no_tag_node_value_mangle=True)
-    if policy and interfaces:
-        if name:
-            policy['interface'] = []
-        else:
-            if 'route' in policy:
-                for route_name, route_conf in policy['route'].items():
-                    route_conf['interface'] = []
-
-            if 'route6' in policy:
-                for route_name, route_conf in policy['route6'].items():
-                    route_conf['interface'] = []
-
-        get_policy_interfaces(conf, policy, name, ipv6)
 
     return policy
 
diff --git a/src/op_mode/route.py b/src/op_mode/route.py
index e1eee5bbf..d07a34180 100755
--- a/src/op_mode/route.py
+++ b/src/op_mode/route.py
@@ -54,6 +54,18 @@ frr_command_template = Template("""
 {% endif %}
 """)
 
+def show_summary(raw: bool):
+    from vyos.util import cmd
+
+    if raw:
+        from json import loads
+
+        output = cmd(f"vtysh -c 'show ip route summary json'")
+        return loads(output)
+    else:
+        output = cmd(f"vtysh -c 'show ip route summary'")
+        return output
+
 def show(raw: bool,
          family: str,
          net: typing.Optional[str],
@@ -83,7 +95,12 @@ def show(raw: bool,
 
         if raw:
             from json import loads
-            return loads(output)
+            d = loads(output)
+            collect = []
+            for k,_ in d.items():
+                for l in d[k]:
+                    collect.append(l)
+            return collect
         else:
             return output
 
diff --git a/src/op_mode/show_openvpn.py b/src/op_mode/show_openvpn.py
index 9a5adcffb..e29e594a5 100755
--- a/src/op_mode/show_openvpn.py
+++ b/src/op_mode/show_openvpn.py
@@ -59,7 +59,11 @@ def get_vpn_tunnel_address(peer, interface):
         for line in lines:
             if peer in line:
                 lst.append(line)
-        tunnel_ip = lst[1].split(',')[0]
+
+        # filter out subnet entries
+        lst = [l for l in lst[1:] if '/' not in l.split(',')[0]]
+
+        tunnel_ip = lst[0].split(',')[0]
 
         return tunnel_ip
 
diff --git a/src/op_mode/storage.py b/src/op_mode/storage.py
index 75964c493..d16e271bd 100755
--- a/src/op_mode/storage.py
+++ b/src/op_mode/storage.py
@@ -20,6 +20,16 @@ import sys
 import vyos.opmode
 from vyos.util import cmd
 
+# FIY: As of coreutils from Debian Buster and Bullseye,
+# the outpt looks like this:
+#
+# $ df -h -t ext4 --output=source,size,used,avail,pcent
+# Filesystem      Size  Used Avail Use%
+# /dev/sda1        16G  7.6G  7.3G  51%
+#
+# Those field names are automatically normalized by vyos.opmode.run,
+# so we don't touch them here,
+# and only normalize values.
 
 def _get_system_storage(only_persistent=False):
     if not only_persistent:
@@ -32,11 +42,19 @@ def _get_system_storage(only_persistent=False):
     return res
 
 def _get_raw_data():
+    from re import sub as re_sub
+    from vyos.util import human_to_bytes
+
     out =  _get_system_storage(only_persistent=True)
     lines = out.splitlines()
     lists = [l.split() for l in lines]
     res = {lists[0][i]: lists[1][i] for i in range(len(lists[0]))}
 
+    res["Size"] = human_to_bytes(res["Size"])
+    res["Used"] = human_to_bytes(res["Used"])
+    res["Avail"] = human_to_bytes(res["Avail"])
+    res["Use%"] = re_sub(r'%', '', res["Use%"])
+
     return res
 
 def _get_formatted_output():
diff --git a/src/op_mode/traceroute.py b/src/op_mode/traceroute.py
index 4299d6e5f..6c7030ea0 100755
--- a/src/op_mode/traceroute.py
+++ b/src/op_mode/traceroute.py
@@ -18,6 +18,25 @@ import os
 import sys
 import socket
 import ipaddress
+from vyos.util import get_all_vrfs
+from vyos.ifconfig import Section
+
+
+def interface_list() -> list:
+    """
+    Get list of interfaces in system
+    :rtype: list
+    """
+    return Section.interfaces()
+
+
+def vrf_list() -> list:
+    """
+    Get list of VRFs in system
+    :rtype: list
+    """
+    return list(get_all_vrfs().keys())
+
 
 options = {
     'backward-hops': {
@@ -48,6 +67,7 @@ options = {
     'interface': {
         'traceroute': '{command} -i {value}',
         'type': '<interface>',
+        'helpfunction': interface_list,
         'help': 'Source interface'
     },
     'lookup-as': {
@@ -99,6 +119,7 @@ options = {
         'traceroute': 'sudo ip vrf exec {value} {command}',
         'type': '<vrf>',
         'help': 'Use specified VRF table',
+        'helpfunction': vrf_list,
         'dflt': 'default'}
 }
 
@@ -108,20 +129,33 @@ traceroute = {
 }
 
 
-class List (list):
-    def first (self):
+class List(list):
+    def first(self):
         return self.pop(0) if self else ''
 
     def last(self):
         return self.pop() if self else ''
 
-    def prepend(self,value):
-        self.insert(0,value)
+    def prepend(self, value):
+        self.insert(0, value)
+
+
+def completion_failure(option: str) -> None:
+    """
+    Shows failure message after TAB when option is wrong
+    :param option: failure option
+    :type str:
+    """
+    sys.stderr.write('\n\n Invalid option: {}\n\n'.format(option))
+    sys.stdout.write('<nocomps>')
+    sys.exit(1)
 
 
 def expension_failure(option, completions):
     reason = 'Ambiguous' if completions else 'Invalid'
-    sys.stderr.write('\n\n  {} command: {} [{}]\n\n'.format(reason,' '.join(sys.argv), option))
+    sys.stderr.write(
+        '\n\n  {} command: {} [{}]\n\n'.format(reason, ' '.join(sys.argv),
+                                               option))
     if completions:
         sys.stderr.write('  Possible completions:\n   ')
         sys.stderr.write('\n   '.join(completions))
@@ -160,30 +194,46 @@ if __name__ == '__main__':
         sys.exit("traceroute: Missing host")
 
     if host == '--get-options':
-        args.first()  # pop traceroute
+        args.first()  # pop ping
         args.first()  # pop IP
+        usedoptionslist = []
         while args:
-            option = args.first()
-
-            matched = complete(option)
+            option = args.first()  # pop option
+            matched = complete(option)  # get option parameters
+            usedoptionslist.append(option)  # list of used options
+            # Select options
             if not args:
+                # remove from Possible completions used options
+                for o in usedoptionslist:
+                    if o in matched:
+                        matched.remove(o)
                 sys.stdout.write(' '.join(matched))
                 sys.exit(0)
 
-            if len(matched) > 1 :
+            if len(matched) > 1:
                 sys.stdout.write(' '.join(matched))
                 sys.exit(0)
+            # If option doesn't have value
+            if matched:
+                if options[matched[0]]['type'] == 'noarg':
+                    continue
+            else:
+                # Unexpected option
+                completion_failure(option)
 
-            if options[matched[0]]['type'] == 'noarg':
-                continue
-
-            value = args.first()
+            value = args.first()  # pop option's value
             if not args:
                 matched = complete(option)
-                sys.stdout.write(options[matched[0]]['type'])
+                helplines = options[matched[0]]['type']
+                # Run helpfunction to get list of possible values
+                if 'helpfunction' in options[matched[0]]:
+                    result = options[matched[0]]['helpfunction']()
+                    if result:
+                        helplines = '\n' + ' '.join(result)
+                sys.stdout.write(helplines)
                 sys.exit(0)
 
-    for name,option in options.items():
+    for name, option in options.items():
         if 'dflt' in option and name not in args:
             args.append(name)
             args.append(option['dflt'])
@@ -200,8 +250,7 @@ if __name__ == '__main__':
     except ValueError:
         sys.exit(f'traceroute: Unknown host: {host}')
 
-    command = convert(traceroute[version],args)
+    command = convert(traceroute[version], args)
 
     # print(f'{command} {host}')
     os.system(f'{command} {host}')
-
diff --git a/src/op_mode/vrf.py b/src/op_mode/vrf.py
index aeb50fe6e..a9a416761 100755
--- a/src/op_mode/vrf.py
+++ b/src/op_mode/vrf.py
@@ -31,14 +31,14 @@ def _get_raw_data(name=None):
     If vrf name is set - get only this name data
     If vrf name set and not found - return []
     """
-    output = cmd('sudo ip --json --brief link show type vrf')
+    output = cmd('ip --json --brief link show type vrf')
     data = json.loads(output)
     if not data:
         return []
     if name:
         is_vrf_exists = True if [vrf for vrf in data if vrf.get('ifname') == name] else False
         if is_vrf_exists:
-            output = cmd(f'sudo ip --json --brief link show dev {name}')
+            output = cmd(f'ip --json --brief link show dev {name}')
             data = json.loads(output)
             return data
         return []
@@ -51,7 +51,7 @@ def _get_vrf_members(vrf: str) -> list:
     :param vrf: str
     :return: list
     """
-    output = cmd(f'sudo ip --json --brief link show master {vrf}')
+    output = cmd(f'ip --json --brief link show master {vrf}')
     answer = json.loads(output)
     interfaces = []
     for data in answer:
diff --git a/src/op_mode/webproxy_update_blacklist.sh b/src/op_mode/webproxy_update_blacklist.sh
index 43a4b79fc..4fb9a54c6 100755
--- a/src/op_mode/webproxy_update_blacklist.sh
+++ b/src/op_mode/webproxy_update_blacklist.sh
@@ -18,6 +18,23 @@ blacklist_url='ftp://ftp.univ-tlse1.fr/pub/reseau/cache/squidguard_contrib/black
 data_dir="/opt/vyatta/etc/config/url-filtering"
 archive="${data_dir}/squidguard/archive"
 db_dir="${data_dir}/squidguard/db"
+conf_file="/etc/squidguard/squidGuard.conf"
+tmp_conf_file="/tmp/sg_update_db.conf"
+
+#$1-category
+#$2-type
+#$3-list
+create_sg_db ()
+{
+       FILE=$db_dir/$1/$2
+       if test -f "$FILE"; then
+                rm -f ${tmp_conf_file}
+                printf "dbhome $db_dir\ndest $1 {\n     $3      $1/$2\n}\nacl {\n       default {\n             pass    any\n   }\n}" >> ${tmp_conf_file}
+                /usr/bin/squidGuard -b -c ${tmp_conf_file} -C $FILE
+                rm -f ${tmp_conf_file}
+       fi
+
+}
 
 while [ $# -gt 0 ]
 do
@@ -88,7 +105,17 @@ if [[ -n $update ]] && [[ $update -eq "yes" ]]; then
 
     # fix permissions
     chown -R proxy:proxy ${db_dir}
-    chmod 2770 ${db_dir}
+
+    #create db
+    category_list=(`find $db_dir -type d -exec basename {} \; `)
+    for category in ${category_list[@]}
+    do
+        create_sg_db $category "domains" "domainlist"
+        create_sg_db $category "urls" "urllist"
+        create_sg_db $category "expressions" "expressionlist"
+    done
+    chown -R proxy:proxy ${db_dir}
+    chmod 755 ${db_dir}
 
     logger --priority WARNING "webproxy blacklist entries updated (${count_before}/${count_after})"
 
diff --git a/src/services/api/graphql/__init__.py b/src/services/api/graphql/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/src/services/api/graphql/__init__.py
diff --git a/src/services/api/graphql/bindings.py b/src/services/api/graphql/bindings.py
index 0b1260912..aa1ba0eb0 100644
--- a/src/services/api/graphql/bindings.py
+++ b/src/services/api/graphql/bindings.py
@@ -18,16 +18,26 @@ from . graphql.queries import query
 from . graphql.mutations import mutation
 from . graphql.directives import directives_dict
 from . graphql.errors import op_mode_error
-from . utils.schema_from_op_mode import generate_op_mode_definitions
+from . graphql.auth_token_mutation import auth_token_mutation
+from . generate.schema_from_op_mode import generate_op_mode_definitions
+from . generate.schema_from_config_session import generate_config_session_definitions
+from . generate.schema_from_composite import generate_composite_definitions
+from . libs.token_auth import init_secret
+from . import state
 from ariadne import make_executable_schema, load_schema_from_path, snake_case_fallback_resolvers
 
 def generate_schema():
     api_schema_dir = vyos.defaults.directories['api_schema']
 
     generate_op_mode_definitions()
+    generate_config_session_definitions()
+    generate_composite_definitions()
+
+    if state.settings['app'].state.vyos_auth_type == 'token':
+        init_secret()
 
     type_defs = load_schema_from_path(api_schema_dir)
 
-    schema = make_executable_schema(type_defs, query, op_mode_error, mutation, snake_case_fallback_resolvers, directives=directives_dict)
+    schema = make_executable_schema(type_defs, query, op_mode_error, mutation, auth_token_mutation, snake_case_fallback_resolvers, directives=directives_dict)
 
     return schema
diff --git a/src/services/api/graphql/generate/composite_function.py b/src/services/api/graphql/generate/composite_function.py
new file mode 100644
index 000000000..bc9d80fbb
--- /dev/null
+++ b/src/services/api/graphql/generate/composite_function.py
@@ -0,0 +1,11 @@
+# typing information for composite functions: those that invoke several
+# elementary requests, and return the result as a single dict
+import typing
+
+def system_status():
+    pass
+
+queries = {'system_status': system_status}
+
+mutations = {}
+
diff --git a/src/services/api/graphql/utils/config_session_function.py b/src/services/api/graphql/generate/config_session_function.py
index fc0dd7a87..fc0dd7a87 100644
--- a/src/services/api/graphql/utils/config_session_function.py
+++ b/src/services/api/graphql/generate/config_session_function.py
diff --git a/src/services/api/graphql/generate/schema_from_composite.py b/src/services/api/graphql/generate/schema_from_composite.py
new file mode 100755
index 000000000..61a08cb2f
--- /dev/null
+++ b/src/services/api/graphql/generate/schema_from_composite.py
@@ -0,0 +1,165 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+#
+# A utility to generate GraphQL schema defintions from typing information of
+# composite functions comprising several requests.
+
+import os
+import sys
+import json
+from inspect import signature, getmembers, isfunction, isclass, getmro
+from jinja2 import Template
+
+from vyos.defaults import directories
+if __package__ is None or __package__ == '':
+    sys.path.append("/usr/libexec/vyos/services/api")
+    from graphql.libs.op_mode import snake_to_pascal_case, map_type_name
+    from composite_function import queries, mutations
+    from vyos.config import Config
+    from vyos.configdict import dict_merge
+    from vyos.xml import defaults
+else:
+    from .. libs.op_mode import snake_to_pascal_case, map_type_name
+    from . composite_function import queries, mutations
+    from .. import state
+
+SCHEMA_PATH = directories['api_schema']
+
+if __package__ is None or __package__ == '':
+    # allow running stand-alone
+    conf = Config()
+    base = ['service', 'https', 'api']
+    graphql_dict = conf.get_config_dict(base, key_mangling=('-', '_'),
+                                          no_tag_node_value_mangle=True,
+                                          get_first_key=True)
+    if 'graphql' not in graphql_dict:
+        exit("graphql is not configured")
+
+    graphql_dict = dict_merge(defaults(base), graphql_dict)
+    auth_type = graphql_dict['graphql']['authentication']['type']
+else:
+    auth_type = state.settings['app'].state.vyos_auth_type
+
+schema_data: dict = {'auth_type': auth_type,
+                     'schema_name': '',
+                     'schema_fields': []}
+
+query_template  = """
+{%- if auth_type == 'key' %}
+input {{ schema_name }}Input {
+    key: String!
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- elif schema_fields %}
+input {{ schema_name }}Input {
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- endif %}
+
+type {{ schema_name }} {
+    result: Generic
+}
+
+type {{ schema_name }}Result {
+    data: {{ schema_name }}
+    success: Boolean!
+    errors: [String]
+}
+
+extend type Query {
+{%- if auth_type == 'key' or schema_fields %}
+    {{ schema_name }}(data: {{ schema_name }}Input) : {{ schema_name }}Result @compositequery
+{%- else %}
+    {{ schema_name }} : {{ schema_name }}Result @compositequery
+{%- endif %}
+}
+"""
+
+mutation_template  = """
+{%- if auth_type == 'key' %}
+input {{ schema_name }}Input {
+    key: String!
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- elif schema_fields %}
+input {{ schema_name }}Input {
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- endif %}
+
+type {{ schema_name }} {
+    result: Generic
+}
+
+type {{ schema_name }}Result {
+    data: {{ schema_name }}
+    success: Boolean!
+    errors: [String]
+}
+
+extend type Mutation {
+{%- if auth_type == 'key' or schema_fields %}
+    {{ schema_name }}(data: {{ schema_name }}Input) : {{ schema_name }}Result @compositemutation
+{%- else %}
+    {{ schema_name }} : {{ schema_name }}Result @compositemutation
+{%- endif %}
+}
+"""
+
+def create_schema(func_name: str, func: callable, template: str) -> str:
+    sig = signature(func)
+
+    field_dict = {}
+    for k in sig.parameters:
+        field_dict[sig.parameters[k].name] = map_type_name(sig.parameters[k].annotation)
+
+    schema_fields = []
+    for k,v in field_dict.items():
+        schema_fields.append(k+': '+v)
+
+    schema_data['schema_name'] = snake_to_pascal_case(func_name)
+    schema_data['schema_fields'] = schema_fields
+
+    j2_template = Template(template)
+    res = j2_template.render(schema_data)
+
+    return res
+
+def generate_composite_definitions():
+    results = []
+    for name,func in queries.items():
+        res = create_schema(name, func, query_template)
+        results.append(res)
+
+    for name,func in mutations.items():
+        res = create_schema(name, func, mutation_template)
+        results.append(res)
+
+    out = '\n'.join(results)
+    with open(f'{SCHEMA_PATH}/composite.graphql', 'w') as f:
+        f.write(out)
+
+if __name__ == '__main__':
+    generate_composite_definitions()
diff --git a/src/services/api/graphql/utils/schema_from_config_session.py b/src/services/api/graphql/generate/schema_from_config_session.py
index ea78aaf88..49bf2440e 100755
--- a/src/services/api/graphql/utils/schema_from_config_session.py
+++ b/src/services/api/graphql/generate/schema_from_config_session.py
@@ -19,28 +19,60 @@
 # (wrappers of) native configsession functions.
 
 import os
+import sys
 import json
 from inspect import signature, getmembers, isfunction, isclass, getmro
 from jinja2 import Template
 
+from vyos.defaults import directories
 if __package__ is None or __package__ == '':
-    from util import snake_to_pascal_case, map_type_name
+    sys.path.append("/usr/libexec/vyos/services/api")
+    from graphql.libs.op_mode import snake_to_pascal_case, map_type_name
+    from config_session_function import queries, mutations
+    from vyos.config import Config
+    from vyos.configdict import dict_merge
+    from vyos.xml import defaults
 else:
-    from . util import snake_to_pascal_case, map_type_name
+    from .. libs.op_mode import snake_to_pascal_case, map_type_name
+    from . config_session_function import queries, mutations
+    from .. import state
+
+SCHEMA_PATH = directories['api_schema']
 
-# this will be run locally before the build
-SCHEMA_PATH = '../graphql/schema'
+if __package__ is None or __package__ == '':
+    # allow running stand-alone
+    conf = Config()
+    base = ['service', 'https', 'api']
+    graphql_dict = conf.get_config_dict(base, key_mangling=('-', '_'),
+                                          no_tag_node_value_mangle=True,
+                                          get_first_key=True)
+    if 'graphql' not in graphql_dict:
+        exit("graphql is not configured")
+
+    graphql_dict = dict_merge(defaults(base), graphql_dict)
+    auth_type = graphql_dict['graphql']['authentication']['type']
+else:
+    auth_type = state.settings['app'].state.vyos_auth_type
 
-schema_data: dict = {'schema_name': '',
+schema_data: dict = {'auth_type': auth_type,
+                     'schema_name': '',
                      'schema_fields': []}
 
 query_template  = """
+{%- if auth_type == 'key' %}
 input {{ schema_name }}Input {
     key: String!
     {%- for field_entry in schema_fields %}
     {{ field_entry }}
     {%- endfor %}
 }
+{%- elif schema_fields %}
+input {{ schema_name }}Input {
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- endif %}
 
 type {{ schema_name }} {
     result: Generic
@@ -53,17 +85,29 @@ type {{ schema_name }}Result {
 }
 
 extend type Query {
+{%- if auth_type == 'key' or schema_fields %}
     {{ schema_name }}(data: {{ schema_name }}Input) : {{ schema_name }}Result @configsessionquery
+{%- else %}
+    {{ schema_name }} : {{ schema_name }}Result @configsessionquery
+{%- endif %}
 }
 """
 
 mutation_template  = """
+{%- if auth_type == 'key' %}
 input {{ schema_name }}Input {
     key: String!
     {%- for field_entry in schema_fields %}
     {{ field_entry }}
     {%- endfor %}
 }
+{%- elif schema_fields %}
+input {{ schema_name }}Input {
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- endif %}
 
 type {{ schema_name }} {
     result: Generic
@@ -76,7 +120,11 @@ type {{ schema_name }}Result {
 }
 
 extend type Mutation {
+{%- if auth_type == 'key' or schema_fields %}
     {{ schema_name }}(data: {{ schema_name }}Input) : {{ schema_name }}Result @configsessionmutation
+{%- else %}
+    {{ schema_name }} : {{ schema_name }}Result @configsessionmutation
+{%- endif %}
 }
 """
 
@@ -100,8 +148,6 @@ def create_schema(func_name: str, func: callable, template: str) -> str:
     return res
 
 def generate_config_session_definitions():
-    from config_session_function import queries, mutations
-
     results = []
     for name,func in queries.items():
         res = create_schema(name, func, query_template)
diff --git a/src/services/api/graphql/utils/schema_from_op_mode.py b/src/services/api/graphql/generate/schema_from_op_mode.py
index 57d63628b..fc63b0100 100755
--- a/src/services/api/graphql/utils/schema_from_op_mode.py
+++ b/src/services/api/graphql/generate/schema_from_op_mode.py
@@ -19,17 +19,24 @@
 # scripts.
 
 import os
+import sys
 import json
 from inspect import signature, getmembers, isfunction, isclass, getmro
 from jinja2 import Template
 
 from vyos.defaults import directories
+from vyos.util import load_as_module
 if __package__ is None or __package__ == '':
-    from util import load_as_module, is_op_mode_function_name, is_show_function_name
-    from util import snake_to_pascal_case, map_type_name
+    sys.path.append("/usr/libexec/vyos/services/api")
+    from graphql.libs.op_mode import is_op_mode_function_name, is_show_function_name
+    from graphql.libs.op_mode import snake_to_pascal_case, map_type_name
+    from vyos.config import Config
+    from vyos.configdict import dict_merge
+    from vyos.xml import defaults
 else:
-    from . util import load_as_module, is_op_mode_function_name, is_show_function_name
-    from . util import snake_to_pascal_case, map_type_name
+    from .. libs.op_mode import is_op_mode_function_name, is_show_function_name
+    from .. libs.op_mode import snake_to_pascal_case, map_type_name
+    from .. import state
 
 OP_MODE_PATH = directories['op_mode']
 SCHEMA_PATH = directories['api_schema']
@@ -38,16 +45,40 @@ DATA_DIR = directories['data']
 op_mode_include_file = os.path.join(DATA_DIR, 'op-mode-standardized.json')
 op_mode_error_schema = 'op_mode_error.graphql'
 
-schema_data: dict = {'schema_name': '',
+if __package__ is None or __package__ == '':
+    # allow running stand-alone
+    conf = Config()
+    base = ['service', 'https', 'api']
+    graphql_dict = conf.get_config_dict(base, key_mangling=('-', '_'),
+                                          no_tag_node_value_mangle=True,
+                                          get_first_key=True)
+    if 'graphql' not in graphql_dict:
+        exit("graphql is not configured")
+
+    graphql_dict = dict_merge(defaults(base), graphql_dict)
+    auth_type = graphql_dict['graphql']['authentication']['type']
+else:
+    auth_type = state.settings['app'].state.vyos_auth_type
+
+schema_data: dict = {'auth_type': auth_type,
+                     'schema_name': '',
                      'schema_fields': []}
 
 query_template  = """
+{%- if auth_type == 'key' %}
 input {{ schema_name }}Input {
     key: String!
     {%- for field_entry in schema_fields %}
     {{ field_entry }}
     {%- endfor %}
 }
+{%- elif schema_fields %}
+input {{ schema_name }}Input {
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- endif %}
 
 type {{ schema_name }} {
     result: Generic
@@ -61,17 +92,29 @@ type {{ schema_name }}Result {
 }
 
 extend type Query {
+{%- if auth_type == 'key' or schema_fields %}
     {{ schema_name }}(data: {{ schema_name }}Input) : {{ schema_name }}Result @genopquery
+{%- else %}
+    {{ schema_name }} : {{ schema_name }}Result @genopquery
+{%- endif %}
 }
 """
 
 mutation_template  = """
+{%- if auth_type == 'key' %}
 input {{ schema_name }}Input {
     key: String!
     {%- for field_entry in schema_fields %}
     {{ field_entry }}
     {%- endfor %}
 }
+{%- elif schema_fields %}
+input {{ schema_name }}Input {
+    {%- for field_entry in schema_fields %}
+    {{ field_entry }}
+    {%- endfor %}
+}
+{%- endif %}
 
 type {{ schema_name }} {
     result: Generic
@@ -85,7 +128,11 @@ type {{ schema_name }}Result {
 }
 
 extend type Mutation {
+{%- if auth_type == 'key' or schema_fields %}
     {{ schema_name }}(data: {{ schema_name }}Input) : {{ schema_name }}Result @genopmutation
+{%- else %}
+    {{ schema_name }} : {{ schema_name }}Result @genopquery
+{%- endif %}
 }
 """
 
diff --git a/src/services/api/graphql/graphql/auth_token_mutation.py b/src/services/api/graphql/graphql/auth_token_mutation.py
new file mode 100644
index 000000000..21ac40094
--- /dev/null
+++ b/src/services/api/graphql/graphql/auth_token_mutation.py
@@ -0,0 +1,49 @@
+# Copyright 2022 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+import jwt
+import datetime
+from typing import Any, Dict
+from ariadne import ObjectType, UnionType
+from graphql import GraphQLResolveInfo
+
+from .. libs.token_auth import generate_token
+from .. import state
+
+auth_token_mutation = ObjectType("Mutation")
+
+@auth_token_mutation.field('AuthToken')
+def auth_token_resolver(obj: Any, info: GraphQLResolveInfo, data: Dict):
+    # non-nullable fields
+    user = data['username']
+    passwd = data['password']
+
+    secret = state.settings['secret']
+    exp_interval = int(state.settings['app'].state.vyos_token_exp)
+    expiration = (datetime.datetime.now(tz=datetime.timezone.utc) +
+                  datetime.timedelta(seconds=exp_interval))
+
+    res = generate_token(user, passwd, secret, expiration)
+    if res:
+        data['result'] = res
+        return {
+            "success": True,
+            "data": data
+        }
+
+    return {
+        "success": False,
+        "errors": ['token generation failed']
+    }
diff --git a/src/services/api/graphql/graphql/directives.py b/src/services/api/graphql/graphql/directives.py
index d75d72582..a7919854a 100644
--- a/src/services/api/graphql/graphql/directives.py
+++ b/src/services/api/graphql/graphql/directives.py
@@ -63,16 +63,25 @@ class GenOpMutationDirective(VyosDirective):
         super().visit_field_definition(field, object_type,
                                        make_resolver=make_gen_op_mutation_resolver)
 
-class SystemStatusDirective(VyosDirective):
+class CompositeQueryDirective(VyosDirective):
     """
     Class providing implementation of 'system_status' directive in schema.
     """
     def visit_field_definition(self, field, object_type):
         super().visit_field_definition(field, object_type,
-                                       make_resolver=make_system_status_resolver)
+                                       make_resolver=make_composite_query_resolver)
+
+class CompositeMutationDirective(VyosDirective):
+    """
+    Class providing implementation of 'system_status' directive in schema.
+    """
+    def visit_field_definition(self, field, object_type):
+        super().visit_field_definition(field, object_type,
+                                       make_resolver=make_composite_mutation_resolver)
 
 directives_dict = {"configsessionquery": ConfigSessionQueryDirective,
                    "configsessionmutation": ConfigSessionMutationDirective,
                    "genopquery": GenOpQueryDirective,
                    "genopmutation": GenOpMutationDirective,
-                   "systemstatus": SystemStatusDirective}
+                   "compositequery": CompositeQueryDirective,
+                   "compositemutation": CompositeMutationDirective}
diff --git a/src/services/api/graphql/graphql/mutations.py b/src/services/api/graphql/graphql/mutations.py
index f7d285a77..87ea59c43 100644
--- a/src/services/api/graphql/graphql/mutations.py
+++ b/src/services/api/graphql/graphql/mutations.py
@@ -14,13 +14,13 @@
 # along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
 from importlib import import_module
-from typing import Any, Dict
+from typing import Any, Dict, Optional
 from ariadne import ObjectType, convert_kwargs_to_snake_case, convert_camel_case_to_snake
 from graphql import GraphQLResolveInfo
 from makefun import with_signature
 
 from .. import state
-from .. import key_auth
+from .. libs import key_auth
 from api.graphql.session.session import Session
 from api.graphql.session.errors.op_mode_errors import op_mode_err_msg, op_mode_err_code
 from vyos.opmode import Error as OpModeError
@@ -42,32 +42,52 @@ def make_mutation_resolver(mutation_name, class_name, session_func):
 
     func_base_name = convert_camel_case_to_snake(class_name)
     resolver_name = f'resolve_{func_base_name}'
-    func_sig = '(obj: Any, info: GraphQLResolveInfo, data: Dict)'
+    func_sig = '(obj: Any, info: GraphQLResolveInfo, data: Optional[Dict]=None)'
 
     @mutation.field(mutation_name)
     @convert_kwargs_to_snake_case
     @with_signature(func_sig, func_name=resolver_name)
     async def func_impl(*args, **kwargs):
         try:
-            if 'data' not in kwargs:
-                return {
-                    "success": False,
-                    "errors": ['missing data']
-                }
-
-            data = kwargs['data']
-            key = data['key']
-
-            auth = key_auth.auth_required(key)
-            if auth is None:
-                return {
-                     "success": False,
-                     "errors": ['invalid API key']
-                }
-
-            # We are finished with the 'key' entry, and may remove so as to
-            # pass the rest of data (if any) to function.
-            del data['key']
+            auth_type = state.settings['app'].state.vyos_auth_type
+
+            if auth_type == 'key':
+                data = kwargs['data']
+                key = data['key']
+
+                auth = key_auth.auth_required(key)
+                if auth is None:
+                    return {
+                         "success": False,
+                         "errors": ['invalid API key']
+                    }
+
+                # We are finished with the 'key' entry, and may remove so as to
+                # pass the rest of data (if any) to function.
+                del data['key']
+
+            elif auth_type == 'token':
+                data = kwargs['data']
+                if data is None:
+                    data = {}
+                info = kwargs['info']
+                user = info.context.get('user')
+                if user is None:
+                    error = info.context.get('error')
+                    if error is not None:
+                        return {
+                            "success": False,
+                            "errors": [error]
+                        }
+                    return {
+                        "success": False,
+                        "errors": ['not authenticated']
+                    }
+            else:
+                # AtrributeError will have already been raised if no
+                # vyos_auth_type; validation and defaultValue ensure it is
+                # one of the previous cases, so this is never reached.
+                pass
 
             session = state.settings['app'].state.vyos_session
 
@@ -112,3 +132,7 @@ def make_config_session_mutation_resolver(mutation_name):
 
 def make_gen_op_mutation_resolver(mutation_name):
     return make_mutation_resolver(mutation_name, mutation_name, 'gen_op_mutation')
+
+def make_composite_mutation_resolver(mutation_name):
+    return make_mutation_resolver(mutation_name, mutation_name,
+                                  convert_camel_case_to_snake(mutation_name))
diff --git a/src/services/api/graphql/graphql/queries.py b/src/services/api/graphql/graphql/queries.py
index 5f3a7d005..1ad586428 100644
--- a/src/services/api/graphql/graphql/queries.py
+++ b/src/services/api/graphql/graphql/queries.py
@@ -14,13 +14,13 @@
 # along with this library.  If not, see <http://www.gnu.org/licenses/>.
 
 from importlib import import_module
-from typing import Any, Dict
+from typing import Any, Dict, Optional
 from ariadne import ObjectType, convert_kwargs_to_snake_case, convert_camel_case_to_snake
 from graphql import GraphQLResolveInfo
 from makefun import with_signature
 
 from .. import state
-from .. import key_auth
+from .. libs import key_auth
 from api.graphql.session.session import Session
 from api.graphql.session.errors.op_mode_errors import op_mode_err_msg, op_mode_err_code
 from vyos.opmode import Error as OpModeError
@@ -42,32 +42,52 @@ def make_query_resolver(query_name, class_name, session_func):
 
     func_base_name = convert_camel_case_to_snake(class_name)
     resolver_name = f'resolve_{func_base_name}'
-    func_sig = '(obj: Any, info: GraphQLResolveInfo, data: Dict)'
+    func_sig = '(obj: Any, info: GraphQLResolveInfo, data: Optional[Dict]=None)'
 
     @query.field(query_name)
     @convert_kwargs_to_snake_case
     @with_signature(func_sig, func_name=resolver_name)
     async def func_impl(*args, **kwargs):
         try:
-            if 'data' not in kwargs:
-                return {
-                    "success": False,
-                    "errors": ['missing data']
-                }
-
-            data = kwargs['data']
-            key = data['key']
-
-            auth = key_auth.auth_required(key)
-            if auth is None:
-                return {
-                     "success": False,
-                     "errors": ['invalid API key']
-                }
-
-            # We are finished with the 'key' entry, and may remove so as to
-            # pass the rest of data (if any) to function.
-            del data['key']
+            auth_type = state.settings['app'].state.vyos_auth_type
+
+            if auth_type == 'key':
+                data = kwargs['data']
+                key = data['key']
+
+                auth = key_auth.auth_required(key)
+                if auth is None:
+                    return {
+                         "success": False,
+                         "errors": ['invalid API key']
+                    }
+
+                # We are finished with the 'key' entry, and may remove so as to
+                # pass the rest of data (if any) to function.
+                del data['key']
+
+            elif auth_type == 'token':
+                data = kwargs['data']
+                if data is None:
+                    data = {}
+                info = kwargs['info']
+                user = info.context.get('user')
+                if user is None:
+                    error = info.context.get('error')
+                    if error is not None:
+                        return {
+                            "success": False,
+                            "errors": [error]
+                        }
+                    return {
+                        "success": False,
+                        "errors": ['not authenticated']
+                    }
+            else:
+                # AtrributeError will have already been raised if no
+                # vyos_auth_type; validation and defaultValue ensure it is
+                # one of the previous cases, so this is never reached.
+                pass
 
             session = state.settings['app'].state.vyos_session
 
@@ -113,5 +133,6 @@ def make_config_session_query_resolver(query_name):
 def make_gen_op_query_resolver(query_name):
     return make_query_resolver(query_name, query_name, 'gen_op_query')
 
-def make_system_status_resolver(query_name):
-    return make_query_resolver(query_name, query_name, 'system_status')
+def make_composite_query_resolver(query_name):
+    return make_query_resolver(query_name, query_name,
+                               convert_camel_case_to_snake(query_name))
diff --git a/src/services/api/graphql/graphql/schema/auth_token.graphql b/src/services/api/graphql/graphql/schema/auth_token.graphql
new file mode 100644
index 000000000..af53a293a
--- /dev/null
+++ b/src/services/api/graphql/graphql/schema/auth_token.graphql
@@ -0,0 +1,19 @@
+
+input AuthTokenInput {
+    username: String!
+    password: String!
+}
+
+type AuthToken {
+    result: Generic
+}
+
+type AuthTokenResult {
+    data: AuthToken
+    success: Boolean!
+    errors: [String]
+}
+
+extend type Mutation {
+    AuthToken(data: AuthTokenInput) : AuthTokenResult
+}
diff --git a/src/services/api/graphql/graphql/schema/configsession.graphql b/src/services/api/graphql/graphql/schema/configsession.graphql
deleted file mode 100644
index b1deac4b3..000000000
--- a/src/services/api/graphql/graphql/schema/configsession.graphql
+++ /dev/null
@@ -1,115 +0,0 @@
-
-input ShowConfigInput {
-    key: String!
-    path: [String!]!
-    configFormat: String = null
-}
-
-type ShowConfig {
-    result: Generic
-}
-
-type ShowConfigResult {
-    data: ShowConfig
-    success: Boolean!
-    errors: [String]
-}
-
-extend type Query {
-    ShowConfig(data: ShowConfigInput) : ShowConfigResult @configsessionquery
-}
-
-input ShowInput {
-    key: String!
-    path: [String!]!
-}
-
-type Show {
-    result: Generic
-}
-
-type ShowResult {
-    data: Show
-    success: Boolean!
-    errors: [String]
-}
-
-extend type Query {
-    Show(data: ShowInput) : ShowResult @configsessionquery
-}
-
-input SaveConfigFileInput {
-    key: String!
-    fileName: String = null
-}
-
-type SaveConfigFile {
-    result: Generic
-}
-
-type SaveConfigFileResult {
-    data: SaveConfigFile
-    success: Boolean!
-    errors: [String]
-}
-
-extend type Mutation {
-    SaveConfigFile(data: SaveConfigFileInput) : SaveConfigFileResult @configsessionmutation
-}
-
-input LoadConfigFileInput {
-    key: String!
-    fileName: String!
-}
-
-type LoadConfigFile {
-    result: Generic
-}
-
-type LoadConfigFileResult {
-    data: LoadConfigFile
-    success: Boolean!
-    errors: [String]
-}
-
-extend type Mutation {
-    LoadConfigFile(data: LoadConfigFileInput) : LoadConfigFileResult @configsessionmutation
-}
-
-input AddSystemImageInput {
-    key: String!
-    location: String!
-}
-
-type AddSystemImage {
-    result: Generic
-}
-
-type AddSystemImageResult {
-    data: AddSystemImage
-    success: Boolean!
-    errors: [String]
-}
-
-extend type Mutation {
-    AddSystemImage(data: AddSystemImageInput) : AddSystemImageResult @configsessionmutation
-}
-
-input DeleteSystemImageInput {
-    key: String!
-    name: String!
-}
-
-type DeleteSystemImage {
-    result: Generic
-}
-
-type DeleteSystemImageResult {
-    data: DeleteSystemImage
-    success: Boolean!
-    errors: [String]
-}
-
-extend type Mutation {
-    DeleteSystemImage(data: DeleteSystemImageInput) : DeleteSystemImageResult @configsessionmutation
-}
\ No newline at end of file
diff --git a/src/services/api/graphql/graphql/schema/schema.graphql b/src/services/api/graphql/graphql/schema/schema.graphql
index 2acecade4..62b0d30bb 100644
--- a/src/services/api/graphql/graphql/schema/schema.graphql
+++ b/src/services/api/graphql/graphql/schema/schema.graphql
@@ -3,7 +3,8 @@ schema {
     mutation: Mutation
 }
 
-directive @systemstatus on FIELD_DEFINITION
+directive @compositequery on FIELD_DEFINITION
+directive @compositemutation on FIELD_DEFINITION
 directive @configsessionquery on FIELD_DEFINITION
 directive @configsessionmutation on FIELD_DEFINITION
 directive @genopquery on FIELD_DEFINITION
@@ -11,8 +12,5 @@ directive @genopmutation on FIELD_DEFINITION
 
 scalar Generic
 
-type Query {
-    SystemStatus(data: SystemStatusInput) : SystemStatusResult @systemstatus
-}
-
+type Query
 type Mutation
diff --git a/src/services/api/graphql/graphql/schema/system_status.graphql b/src/services/api/graphql/graphql/schema/system_status.graphql
deleted file mode 100644
index be8d87535..000000000
--- a/src/services/api/graphql/graphql/schema/system_status.graphql
+++ /dev/null
@@ -1,18 +0,0 @@
-"""
-Use 'scalar Generic' for system status output, to avoid attempts to
-JSON-serialize in case of JSON output.
-"""
-
-input SystemStatusInput {
-    key: String!
-}
-
-type SystemStatus {
-    result: Generic
-}
-
-type SystemStatusResult {
-    data: SystemStatus
-    success: Boolean!
-    errors: [String]
-}
diff --git a/src/services/api/graphql/key_auth.py b/src/services/api/graphql/libs/key_auth.py
index f756ed6d8..2db0f7d48 100644
--- a/src/services/api/graphql/key_auth.py
+++ b/src/services/api/graphql/libs/key_auth.py
@@ -1,5 +1,5 @@
 
-from . import state
+from .. import state
 
 def check_auth(key_list, key):
     if not key_list:
diff --git a/src/services/api/graphql/utils/util.py b/src/services/api/graphql/libs/op_mode.py
index da2bcdb5b..6939ed5d6 100644
--- a/src/services/api/graphql/utils/util.py
+++ b/src/services/api/graphql/libs/op_mode.py
@@ -17,14 +17,12 @@ import os
 import re
 import typing
 import importlib.util
+from typing import Union
+from humps import decamelize
 
 from vyos.defaults import directories
-
-def load_as_module(name: str, path: str):
-    spec = importlib.util.spec_from_file_location(name, path)
-    mod = importlib.util.module_from_spec(spec)
-    spec.loader.exec_module(mod)
-    return mod
+from vyos.util import load_as_module
+from vyos.opmode import _normalize_field_names
 
 def load_op_mode_as_module(name: str):
     path = os.path.join(directories['op_mode'], name)
@@ -98,3 +96,6 @@ def map_type_name(type_name: type, optional: bool = False) -> str:
 
     # scalar 'Generic' is defined in schema.graphql
     return 'Generic'
+
+def normalize_output(result: Union[dict, list]) -> Union[dict, list]:
+    return _normalize_field_names(decamelize(result))
diff --git a/src/services/api/graphql/libs/token_auth.py b/src/services/api/graphql/libs/token_auth.py
new file mode 100644
index 000000000..2100eba7f
--- /dev/null
+++ b/src/services/api/graphql/libs/token_auth.py
@@ -0,0 +1,71 @@
+import jwt
+import uuid
+import pam
+from secrets import token_hex
+
+from .. import state
+
+def _check_passwd_pam(username: str, passwd: str) -> bool:
+    if pam.authenticate(username, passwd):
+        return True
+    return False
+
+def init_secret():
+    length = int(state.settings['app'].state.vyos_secret_len)
+    secret = token_hex(length)
+    state.settings['secret'] = secret
+
+def generate_token(user: str, passwd: str, secret: str, exp: int) -> dict:
+    if user is None or passwd is None:
+        return {}
+    if _check_passwd_pam(user, passwd):
+        app = state.settings['app']
+        try:
+            users = app.state.vyos_token_users
+        except AttributeError:
+            app.state.vyos_token_users = {}
+            users = app.state.vyos_token_users
+        user_id = uuid.uuid1().hex
+        payload_data = {'iss': user, 'sub': user_id, 'exp': exp}
+        secret = state.settings.get('secret')
+        if secret is None:
+            return {
+                    "success": False,
+                    "errors": ['failed secret generation']
+                   }
+        token = jwt.encode(payload=payload_data, key=secret, algorithm="HS256")
+
+        users |= {user_id: user}
+        return {'token': token}
+
+def get_user_context(request):
+    context = {}
+    context['request'] = request
+    context['user'] = None
+    if 'Authorization' in request.headers:
+        auth = request.headers['Authorization']
+        scheme, token = auth.split()
+        if scheme.lower() != 'bearer':
+            return context
+
+        try:
+            secret = state.settings.get('secret')
+            payload = jwt.decode(token, secret, algorithms=["HS256"])
+            user_id: str = payload.get('sub')
+            if user_id is None:
+                return context
+        except jwt.exceptions.ExpiredSignatureError:
+            context['error'] = 'expired token'
+            return context
+        except jwt.PyJWTError:
+            return context
+        try:
+            users = state.settings['app'].state.vyos_token_users
+        except AttributeError:
+            return context
+
+        user = users.get(user_id)
+        if user is not None:
+            context['user'] = user
+
+    return context
diff --git a/src/services/api/graphql/session/composite/system_status.py b/src/services/api/graphql/session/composite/system_status.py
index 3c1a3d45b..d809f32e3 100755
--- a/src/services/api/graphql/session/composite/system_status.py
+++ b/src/services/api/graphql/session/composite/system_status.py
@@ -23,7 +23,7 @@ import importlib.util
 
 from vyos.defaults import directories
 
-from api.graphql.utils.util import load_op_mode_as_module
+from api.graphql.libs.op_mode import load_op_mode_as_module
 
 def get_system_version() -> dict:
     show_version = load_op_mode_as_module('version.py')
diff --git a/src/services/api/graphql/session/errors/op_mode_errors.py b/src/services/api/graphql/session/errors/op_mode_errors.py
index 7ba75455d..7bc1d1d81 100644
--- a/src/services/api/graphql/session/errors/op_mode_errors.py
+++ b/src/services/api/graphql/session/errors/op_mode_errors.py
@@ -3,11 +3,13 @@
 op_mode_err_msg = {
     "UnconfiguredSubsystem": "subsystem is not configured or not running",
     "DataUnavailable": "data currently unavailable",
-    "PermissionDenied": "client does not have permission"
+    "PermissionDenied": "client does not have permission",
+    "IncorrectValue": "argument value is incorrect"
 }
 
 op_mode_err_code = {
     "UnconfiguredSubsystem": 2000,
     "DataUnavailable": 2001,
-    "PermissionDenied": 1003
+    "PermissionDenied": 1003,
+    "IncorrectValue": 1002
 }
diff --git a/src/services/api/graphql/session/session.py b/src/services/api/graphql/session/session.py
index f990e63d0..0b77b1433 100644
--- a/src/services/api/graphql/session/session.py
+++ b/src/services/api/graphql/session/session.py
@@ -24,7 +24,8 @@ from vyos.defaults import directories
 from vyos.template import render
 from vyos.opmode import Error as OpModeError
 
-from api.graphql.utils.util import load_op_mode_as_module, split_compound_op_mode_name
+from api.graphql.libs.op_mode import load_op_mode_as_module, split_compound_op_mode_name
+from api.graphql.libs.op_mode import normalize_output
 
 op_mode_include_file = os.path.join(directories['data'], 'op-mode-standardized.json')
 
@@ -149,6 +150,8 @@ class Session:
         except OpModeError as e:
             raise e
 
+        res = normalize_output(res)
+
         return res
 
     def gen_op_mutation(self):
diff --git a/src/services/vyos-hostsd b/src/services/vyos-hostsd
index 9ae7b1ea9..a380f2e66 100755
--- a/src/services/vyos-hostsd
+++ b/src/services/vyos-hostsd
@@ -406,8 +406,7 @@ def validate_schema(data):
 
 
 def pdns_rec_control(command):
-    # pdns-r process name is NOT equal to the name shown in ps
-    if not process_named_running('pdns-r/worker'):
+    if not process_named_running('pdns_recursor'):
         logger.info(f'pdns_recursor not running, not sending "{command}"')
         return
 
diff --git a/src/services/vyos-http-api-server b/src/services/vyos-http-api-server
index 4ace981ca..60ea9a5ee 100755
--- a/src/services/vyos-http-api-server
+++ b/src/services/vyos-http-api-server
@@ -647,21 +647,30 @@ def reset_op(data: ResetModel):
 ###
 
 def graphql_init(fast_api_app):
-    from api.graphql.bindings import generate_schema
-
+    from api.graphql.libs.token_auth import get_user_context
     api.graphql.state.init()
     api.graphql.state.settings['app'] = app
 
+    # import after initializaion of state
+    from api.graphql.bindings import generate_schema
     schema = generate_schema()
 
     in_spec = app.state.vyos_introspection
 
     if app.state.vyos_origins:
         origins = app.state.vyos_origins
-        app.add_route('/graphql', CORSMiddleware(GraphQL(schema, debug=True, introspection=in_spec), allow_origins=origins, allow_methods=("GET", "POST", "OPTIONS")))
+        app.add_route('/graphql', CORSMiddleware(GraphQL(schema,
+                                                         context_value=get_user_context,
+                                                         debug=True,
+                                                         introspection=in_spec),
+                                                 allow_origins=origins,
+                                                 allow_methods=("GET", "POST", "OPTIONS"),
+                                                 allow_headers=("Authorization",)))
     else:
-        app.add_route('/graphql', GraphQL(schema, debug=True, introspection=in_spec))
-
+        app.add_route('/graphql', GraphQL(schema,
+                                          context_value=get_user_context,
+                                          debug=True,
+                                          introspection=in_spec))
 ###
 
 if __name__ == '__main__':
@@ -688,16 +697,21 @@ if __name__ == '__main__':
     app.state.vyos_debug = server_config['debug']
     app.state.vyos_strict = server_config['strict']
     app.state.vyos_origins = server_config.get('cors', {}).get('allow_origin', [])
-    if 'gql' in server_config:
-        app.state.vyos_gql = True
-        if isinstance(server_config['gql'], dict) and 'introspection' in server_config['gql']:
-            app.state.vyos_introspection = True
-        else:
-            app.state.vyos_introspection = False
+    if 'graphql' in server_config:
+        app.state.vyos_graphql = True
+        if isinstance(server_config['graphql'], dict):
+            if 'introspection' in server_config['graphql']:
+                app.state.vyos_introspection = True
+            else:
+                app.state.vyos_introspection = False
+            # default value is merged in conf_mode http-api.py, if not set
+            app.state.vyos_auth_type = server_config['graphql']['authentication']['type']
+            app.state.vyos_token_exp = server_config['graphql']['authentication']['expiration']
+            app.state.vyos_secret_len = server_config['graphql']['authentication']['secret_length']
     else:
-        app.state.vyos_gql = False
+        app.state.vyos_graphql = False
 
-    if app.state.vyos_gql:
+    if app.state.vyos_graphql:
         graphql_init(app)
 
     try:
diff --git a/src/system/keepalived-fifo.py b/src/system/keepalived-fifo.py
index a0fccd1d0..864ee8419 100755
--- a/src/system/keepalived-fifo.py
+++ b/src/system/keepalived-fifo.py
@@ -67,13 +67,13 @@ class KeepalivedFifo:
         # For VRRP configuration to be read, the commit must be finished
         count = 1
         while commit_in_progress():
-            if ( count <= 40 ):
-                logger.debug(f'commit in progress try: {count}')
+            if ( count <= 20 ):
+                logger.debug(f'Attempt to load keepalived configuration aborted due to a commit in progress (attempt {count}/20)')
             else:
-                logger.error(f'commit still in progress after {count} continuing anyway')
+                logger.error(f'Forced keepalived configuration loading despite a commit in progress ({count} wait time expired, not waiting further)')
                 break
             count += 1
-            time.sleep(0.5)
+            time.sleep(1)
 
         try:
             base = ['high-availability', 'vrrp']
diff --git a/src/systemd/vyos-domain-group-resolve.service b/src/systemd/vyos-domain-group-resolve.service
deleted file mode 100644
index 29628fddb..000000000
--- a/src/systemd/vyos-domain-group-resolve.service
+++ /dev/null
@@ -1,11 +0,0 @@
-[Unit]
-Description=VyOS firewall domain-group resolver
-After=vyos-router.service
-
-[Service]
-Type=simple
-Restart=always
-ExecStart=/usr/bin/python3 /usr/libexec/vyos/vyos-domain-group-resolve.py
-
-[Install]
-WantedBy=multi-user.target
diff --git a/src/systemd/vyos-domain-resolver.service b/src/systemd/vyos-domain-resolver.service
new file mode 100644
index 000000000..c56b51f0c
--- /dev/null
+++ b/src/systemd/vyos-domain-resolver.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=VyOS firewall domain resolver
+After=vyos-router.service
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=/usr/bin/python3 -u /usr/libexec/vyos/vyos-domain-resolver.py
+StandardError=journal
+StandardOutput=journal
+
+[Install]
+WantedBy=multi-user.target
diff --git a/src/tests/test_op_mode.py b/src/tests/test_op_mode.py
new file mode 100644
index 000000000..90963b3c5
--- /dev/null
+++ b/src/tests/test_op_mode.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from unittest import TestCase
+
+import vyos.opmode
+
+class TestVyOSOpMode(TestCase):
+    def test_field_name_normalization(self):
+        from vyos.opmode import _normalize_field_name
+
+        self.assertEqual(_normalize_field_name(" foo bar "), "foo_bar")
+        self.assertEqual(_normalize_field_name("foo-bar"), "foo_bar")
+        self.assertEqual(_normalize_field_name("foo (bar) baz"), "foo_bar_baz")
+        self.assertEqual(_normalize_field_name("load%"), "load_percentage")
+
+    def test_dict_fields_normalization_non_unique(self):
+        from vyos.opmode import _normalize_field_names
+
+        # Space and dot are both replaced by an underscore,
+        # so dicts like this cannor be normalized uniquely
+        data = {"foo bar": True, "foo.bar": False}
+
+        with self.assertRaises(vyos.opmode.InternalError):
+            _normalize_field_names(data)
+
+    def test_dict_fields_normalization_simple_dict(self):
+        from vyos.opmode import _normalize_field_names
+
+        data = {"foo bar": True, "Bar-Baz": False}
+        self.assertEqual(_normalize_field_names(data), {"foo_bar": True, "bar_baz": False})
+
+    def test_dict_fields_normalization_nested_dict(self):
+        from vyos.opmode import _normalize_field_names
+
+        data = {"foo bar": True, "bar-baz": {"baz-quux": {"quux-xyzzy": False}}}
+        self.assertEqual(_normalize_field_names(data),
+          {"foo_bar": True, "bar_baz": {"baz_quux": {"quux_xyzzy": False}}})
+
+    def test_dict_fields_normalization_mixed(self):
+        from vyos.opmode import _normalize_field_names
+
+        data = [{"foo bar": True, "bar-baz": [{"baz-quux": {"quux-xyzzy": [False]}}]}]
+        self.assertEqual(_normalize_field_names(data),
+          [{"foo_bar": True, "bar_baz": [{"baz_quux": {"quux_xyzzy": [False]}}]}])
+
+    def test_dict_fields_normalization_primitive(self):
+        from vyos.opmode import _normalize_field_names
+
+        data = [1, False, "foo"]
+        self.assertEqual(_normalize_field_names(data), [1, False, "foo"])
+
diff --git a/src/tests/test_util.py b/src/tests/test_util.py
index 8ac9a500a..d8b2b7940 100644
--- a/src/tests/test_util.py
+++ b/src/tests/test_util.py
@@ -26,3 +26,17 @@ class TestVyOSUtil(TestCase):
 
     def test_sysctl_read(self):
         self.assertEqual(sysctl_read('net.ipv4.conf.lo.forwarding'), '1')
+
+    def test_camel_to_snake_case(self):
+        self.assertEqual(camel_to_snake_case('ConnectionTimeout'),
+                                             'connection_timeout')
+        self.assertEqual(camel_to_snake_case('connectionTimeout'),
+                                             'connection_timeout')
+        self.assertEqual(camel_to_snake_case('TCPConnectionTimeout'),
+                                             'tcp_connection_timeout')
+        self.assertEqual(camel_to_snake_case('TCPPort'),
+                                             'tcp_port')
+        self.assertEqual(camel_to_snake_case('UseHTTPProxy'),
+                                             'use_http_proxy')
+        self.assertEqual(camel_to_snake_case('CustomerID'),
+                                             'customer_id')
diff --git a/src/validators/allowed-vlan b/src/validators/allowed-vlan
deleted file mode 100755
index 11389390b..000000000
--- a/src/validators/allowed-vlan
+++ /dev/null
@@ -1,19 +0,0 @@
-#! /usr/bin/python3
-
-import sys
-import re
-
-if __name__ == '__main__':
-    if len(sys.argv)>1:
-        allowed_vlan = sys.argv[1]
-        if re.search('[0-9]{1,4}-[0-9]{1,4}', allowed_vlan):
-            for tmp in allowed_vlan.split('-'):
-                if int(tmp) not in range(1, 4095):
-                    sys.exit(1)
-        else:
-            if int(allowed_vlan) not in range(1, 4095):
-                sys.exit(1)
-    else:
-        sys.exit(2)
-    
-    sys.exit(0)
diff --git a/src/validators/dotted-decimal b/src/validators/dotted-decimal
deleted file mode 100755
index 652110346..000000000
--- a/src/validators/dotted-decimal
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2020 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-import re
-import sys
-
-area = sys.argv[1]
-
-res = re.match(r'^(\d+)\.(\d+)\.(\d+)\.(\d+)$', area)
-if not res:
-    print("\'{0}\' is not a valid dotted decimal value".format(area))
-    sys.exit(1)
-else:
-    components = res.groups()
-    for n in range(0, 4):
-        if (int(components[n]) > 255):
-            print("Invalid component of a dotted decimal value: {0} exceeds 255".format(components[n]))
-            sys.exit(1)
-
-sys.exit(0)
diff --git a/src/validators/file-exists b/src/validators/file-exists
deleted file mode 100755
index 5cef6b199..000000000
--- a/src/validators/file-exists
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2019 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-# Description:
-# Check if a given file exists on the system. Used for files that
-# are referenced from the CLI and need to be preserved during an image upgrade.
-# Warn the user if these aren't under /config
-
-import os
-import sys
-import argparse
-
-
-def exit(strict, message):
-    if strict:
-        sys.exit(f'ERROR: {message}')
-    print(f'WARNING: {message}', file=sys.stderr)
-    sys.exit()
-
-
-if __name__ == '__main__':
-    parser = argparse.ArgumentParser()
-    parser.add_argument("-d", "--directory", type=str, help="File must be present in this directory.")
-    parser.add_argument("-e", "--error", action="store_true", help="Tread warnings as errors - change exit code to '1'")
-    parser.add_argument("file", type=str, help="Path of file to validate")
-
-    args = parser.parse_args()
-
-    #
-    # Always check if the given file exists
-    #
-    if not os.path.exists(args.file):
-        exit(args.error, f"File '{args.file}' not found")
-
-    #
-    # Optional check if the file is under a certain directory path
-    #
-    if args.directory:
-        # remove directory path from path to verify
-        rel_filename = args.file.replace(args.directory, '').lstrip('/')
-
-        if not os.path.exists(args.directory + '/' + rel_filename):
-            exit(args.error,
-                f"'{args.file}' lies outside of '{args.directory}' directory.\n"
-                  "It will not get preserved during image upgrade!"
-            )
-
-    sys.exit()
diff --git a/src/validators/fqdn b/src/validators/fqdn
index a4027e4ca..a65d2d5d4 100755
--- a/src/validators/fqdn
+++ b/src/validators/fqdn
@@ -1,27 +1,2 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2020-2021 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-import re
-import sys
-
-pattern = '[A-Za-z0-9][-.A-Za-z0-9]*'
-
-if __name__ == '__main__':
-    if len(sys.argv) != 2:
-        sys.exit(1)
-    if not re.match(pattern, sys.argv[1]):
-        sys.exit(1)
-    sys.exit(0)
+#!/usr/bin/env sh
+${vyos_libexec_dir}/validate-value --regex "[A-Za-z0-9][-.A-Za-z0-9]*" --value "$1"
diff --git a/src/validators/interface-name b/src/validators/interface-name
deleted file mode 100755
index 105815eee..000000000
--- a/src/validators/interface-name
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2021 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import re
-
-from sys import argv
-from sys import exit
-
-pattern = '^(bond|br|dum|en|ersp|eth|gnv|lan|l2tp|l2tpeth|macsec|peth|ppp|pppoe|pptp|sstp|tun|vti|vtun|vxlan|wg|wlan|wwan)[0-9]+(.\d+)?|lo$'
-
-if __name__ == '__main__':
-    if len(argv) != 2:
-        exit(1)
-    interface = argv[1]
-
-    if re.match(pattern, interface):
-        exit(0)
-    if os.path.exists(f'/sys/class/net/{interface}'):
-        exit(0)
-    exit(1)
diff --git a/src/validators/mac-address b/src/validators/mac-address
index 7d020f387..bb859a603 100755
--- a/src/validators/mac-address
+++ b/src/validators/mac-address
@@ -1,27 +1,2 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2018-2020 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-import re
-import sys
-
-pattern = "^([0-9A-Fa-f]{2}:){5}([0-9A-Fa-f]{2})$"
-
-if __name__ == '__main__':
-    if len(sys.argv) != 2:
-        sys.exit(1)
-    if not re.match(pattern, sys.argv[1]):
-        sys.exit(1)
-    sys.exit(0)
+#!/usr/bin/env sh
+${vyos_libexec_dir}/validate-value --regex "([0-9A-Fa-f]{2}:){5}([0-9A-Fa-f]{2})" --value "$1"
diff --git a/src/validators/mac-address-exclude b/src/validators/mac-address-exclude
new file mode 100755
index 000000000..c44913023
--- /dev/null
+++ b/src/validators/mac-address-exclude
@@ -0,0 +1,2 @@
+#!/usr/bin/env sh
+${vyos_libexec_dir}/validate-value --regex "!([0-9A-Fa-f]{2}:){5}([0-9A-Fa-f]{2})" --value "$1"
diff --git a/src/validators/mac-address-firewall b/src/validators/mac-address-firewall
deleted file mode 100755
index 70551f86d..000000000
--- a/src/validators/mac-address-firewall
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2018-2022 VyOS maintainers and contributors
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 or later as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-import re
-import sys
-
-pattern = "^!?([0-9A-Fa-f]{2}:){5}([0-9A-Fa-f]{2})$"
-
-if __name__ == '__main__':
-    if len(sys.argv) != 2:
-        sys.exit(1)
-    if not re.match(pattern, sys.argv[1]):
-        sys.exit(1)
-    sys.exit(0)
diff --git a/src/validators/tcp-flag b/src/validators/tcp-flag
deleted file mode 100755
index 1496b904a..000000000
--- a/src/validators/tcp-flag
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/python3
-
-import sys
-import re
-
-if __name__ == '__main__':
-    if len(sys.argv)>1:
-        flag = sys.argv[1]
-        if flag and flag[0] == '!':
-            flag = flag[1:]
-        if flag not in ['syn', 'ack', 'rst', 'fin', 'urg', 'psh', 'ecn', 'cwr']:
-            print(f'Error: {flag} is not a valid TCP flag')
-            sys.exit(1)
-    else:
-        sys.exit(2)
-
-    sys.exit(0)
diff --git a/src/xdp/common/common.mk b/src/xdp/common/common.mk
index ebe23a9ed..ffb86a65c 100644
--- a/src/xdp/common/common.mk
+++ b/src/xdp/common/common.mk
@@ -39,7 +39,7 @@ KERN_USER_H ?= $(wildcard common_kern_user.h)
 CFLAGS ?= -g -I../include/
 BPF_CFLAGS ?= -I../include/
 
-LIBS = -l:libbpf.a -lelf $(USER_LIBS)
+LIBS = -lbpf -lelf $(USER_LIBS)
 
 all: llvm-check $(USER_TARGETS) $(XDP_OBJ) $(COPY_LOADER) $(COPY_STATS)
 
diff --git a/src/xdp/common/common_user_bpf_xdp.c b/src/xdp/common/common_user_bpf_xdp.c
index e7ef77174..faf7f4f91 100644
--- a/src/xdp/common/common_user_bpf_xdp.c
+++ b/src/xdp/common/common_user_bpf_xdp.c
@@ -274,7 +274,7 @@ struct bpf_object *load_bpf_and_xdp_attach(struct config *cfg)
 		exit(EXIT_FAIL_BPF);
 	}
 
-	strncpy(cfg->progsec, bpf_program__title(bpf_prog, false), sizeof(cfg->progsec));
+	strncpy(cfg->progsec, bpf_program__section_name(bpf_prog), sizeof(cfg->progsec));
 
 	prog_fd = bpf_program__fd(bpf_prog);
 	if (prog_fd <= 0) {