diff options
Diffstat (limited to 'docs/configuration/service')
| -rw-r--r-- | docs/configuration/service/broadcast-relay.rst | 5 | ||||
| -rw-r--r-- | docs/configuration/service/conntrack-sync.rst | 4 | ||||
| -rw-r--r-- | docs/configuration/service/eventhandler.rst | 127 | ||||
| -rw-r--r-- | docs/configuration/service/https.rst | 6 | ||||
| -rw-r--r-- | docs/configuration/service/index.rst | 1 | ||||
| -rw-r--r-- | docs/configuration/service/monitoring.rst | 107 | ||||
| -rw-r--r-- | docs/configuration/service/ssh.rst | 30 |
7 files changed, 276 insertions, 4 deletions
diff --git a/docs/configuration/service/broadcast-relay.rst b/docs/configuration/service/broadcast-relay.rst index df48bfd6..b6e2bed7 100644 --- a/docs/configuration/service/broadcast-relay.rst +++ b/docs/configuration/service/broadcast-relay.rst @@ -28,6 +28,11 @@ Configuration want to receive/relay packets on both `eth1` and `eth2` both interfaces need to be added. +.. cfgcmd:: set service broadcast-relay id <n> address <ipv4-address> + + Set the source IP of forwarded packets, otherwise original senders address + is used. + .. cfgcmd:: set service broadcast-relay id <n> port <port> The UDP port number used by your apllication. It is mandatory for this kind diff --git a/docs/configuration/service/conntrack-sync.rst b/docs/configuration/service/conntrack-sync.rst index a7cd7060..1b72f8eb 100644 --- a/docs/configuration/service/conntrack-sync.rst +++ b/docs/configuration/service/conntrack-sync.rst @@ -114,11 +114,11 @@ Operation conntrack is not enabled. To enable conntrack, just create a NAT or a firewall rule. :cfgcmd:`set firewall state-policy established action accept` -.. opcmd:: show conntrack-sync external-cache +.. opcmd:: show conntrack-sync cache external Show connection syncing external cache entries -.. opcmd:: show conntrack-sync internal-cache +.. opcmd:: show conntrack-sync cache internal Show connection syncing internal cache entries diff --git a/docs/configuration/service/eventhandler.rst b/docs/configuration/service/eventhandler.rst new file mode 100644 index 00000000..15f08239 --- /dev/null +++ b/docs/configuration/service/eventhandler.rst @@ -0,0 +1,127 @@ +.. _event-handler: + +############# +Event Handler +############# + +********************************* +Event Handler Technology Overview +********************************* + +Event handler allows you to execute scripts when a string that matches a regex or a regex with +a service name appears in journald logs. You can pass variables, arguments, and a full matching string to the script. + + +****************************** +How to configure Event Handler +****************************** + + `1. Create an event handler`_ + + `2. Add regex to the script`_ + + `3. Add a full path to the script`_ + + `4. Add optional parameters`_ + +********************************* +Event Handler Configuration Steps +********************************* + +1. Create an event handler +========================== + + .. cfgcmd:: set service event-handler event <event-handler name> + + This is an optional command because the event handler will be automatically created after any of the next commands. + + +2. Add regex to the script +=========================================== + + .. cfgcmd:: set service event-handler event <event-handler name> filter pattern <regex> + + This is a mandatory command. Sets regular expression to match against log string message. + + .. note:: The regular expression matches if and only if the entire string matches the pattern. + + + +3. Add a full path to the script +================================ + + .. cfgcmd:: set service event-handler event <event-handler name> script path <path to script> + + This is a mandatory command. Sets the full path to the script. The script file must be executable. + + + +4. Add optional parameters +========================== + + .. cfgcmd:: set service event-handler event <event-handler name> filter syslog-identifier <sylogid name> + + This is an optional command. Filters log messages by syslog-identifier. + + .. cfgcmd:: set service event-handler event <event-handler name> script environment <env name> value <env value> + + This is an optional command. Adds environment and its value to the script. Use separate commands for each environment. + + One implicit environment exists. + + * ``message``: Full message that has triggered the script. + + .. cfgcmd:: set service event-handler event <event-handler name> script arguments <arguments> + + This is an optional command. Adds arguments to the script. Arguments must be separated by spaces. + + .. note:: We don't recomend to use arguments. Using environments is more preffereble. + + +******* +Example +******* + + Event handler that monitors the state of interface eth0. + + .. code-block:: none + + set service event-handler event INTERFACE_STATE_DOWN filter pattern '.*eth0.*,RUNNING,.*->.*' + set service event-handler event INTERFACE_STATE_DOWN filter syslog-identifier 'netplugd' + set service event-handler event INTERFACE_STATE_DOWN script environment interface_action value 'down' + set service event-handler event INTERFACE_STATE_DOWN script environment interface_name value 'eth2' + set service event-handler event INTERFACE_STATE_DOWN script path '/config/scripts/eventhandler.py' + + Event handler script + + .. code-block:: none + + #!/usr/bin/env python3 + # + # VyOS event-handler script example + from os import environ + import subprocess + from sys import exit + + # Perform actions according to requirements + def process_event() -> None: + # Get variables + message_text = environ.get('message') + interface_name = environ.get('interface_name') + interface_action = environ.get('interface_action') + # Print the message that triggered this script + print(f'Logged message: {message_text}') + # Prepare a command to run + command = f'sudo ip link set {interface_name} {interface_action}'.split() + # Execute a command + subprocess.run(command) + + if __name__ == '__main__': + try: + # Run script actions and exit + process_event() + exit(0) + except Exception as err: + # Exit properly in case if something in the script goes wrong + print(f'Error running script: {err}') + exit(1) diff --git a/docs/configuration/service/https.rst b/docs/configuration/service/https.rst index 22533db5..08b16575 100644 --- a/docs/configuration/service/https.rst +++ b/docs/configuration/service/https.rst @@ -28,6 +28,10 @@ Configuration Set the listen port of the local API, this has no effect on the webserver. The default is port 8080 +.. cfgcmd:: set service https api socket + + Use local socket for API + .. cfgcmd:: set service https api strict Enforce strict path checking @@ -89,4 +93,4 @@ To use this full configuration we asume a public accessible hostname. set service https virtual-host rtr01 listen-address 198.51.100.2 set service https virtual-host rtr01 listen-port 11443 set service https virtual-host rtr01 server-name rtr01.example.com - set service https api-restrict virtual-host rtr01.example.com + set service https api-restrict virtual-host rtr01 diff --git a/docs/configuration/service/index.rst b/docs/configuration/service/index.rst index 11a1a118..8607490d 100644 --- a/docs/configuration/service/index.rst +++ b/docs/configuration/service/index.rst @@ -25,3 +25,4 @@ Service ssh tftp-server webproxy + eventhandler diff --git a/docs/configuration/service/monitoring.rst b/docs/configuration/service/monitoring.rst index 7396f142..755669e1 100644 --- a/docs/configuration/service/monitoring.rst +++ b/docs/configuration/service/monitoring.rst @@ -1,10 +1,111 @@ Monitoring ---------- -Monitoring functionality with ``telegraf`` and ``InfluxDB 2`` is provided. +Azure-data-explorer +=================== +Telegraf output plugin azure-data-explorer_ + +.. cfgcmd:: set service monitoring telegraf azure-data-explorer authentication client-id <client-id> + + Authentication application client-id. + +.. cfgcmd:: set service monitoring telegraf azure-data-explorer authentication client-secret <client-secret> + + Authentication application client-secret. + +.. cfgcmd:: set service monitoring telegraf azure-data-explorer authentication tenant-id <tenant-id> + + Authentication application tenant-id + +.. cfgcmd:: set service monitoring telegraf azure-data-explorer database <name> + + Remote databe name. + +.. cfgcmd:: set service monitoring telegraf azure-data-explorer group-metrics <single-table | table-per-metric> + + Type of metrics grouping when push to Azure Data Explorer. The default is + ``table-per-metric``. + +.. cfgcmd:: set service monitoring telegraf azure-data-explorer table <name> + + Name of the single table Only if set group-metrics single-table. + +.. cfgcmd:: set service monitoring telegraf azure-data-explorer url <url> + + Remote URL. + +Prometheus-client +================= +Telegraf output plugin prometheus-client_ + +.. cfgcmd:: set service monitoring telegraf prometheus-client + + Output plugin Prometheus client + +.. cfgcmd:: set service monitoring telegraf prometheus-client allow-from <prefix> + + Networks allowed to query this server + +.. cfgcmd:: set service monitoring telegraf prometheus-client authentication username <username> + + HTTP basic authentication username + +.. cfgcmd:: set service monitoring telegraf prometheus-client authentication password <password> + + HTTP basic authentication username + +.. cfgcmd:: set service monitoring telegraf prometheus-client listen-address <address> + + Local IP addresses to listen on + +.. cfgcmd:: set service monitoring telegraf prometheus-client metric-version <1 | 2> + + Metris version, the default is ``2`` + +.. cfgcmd:: set service monitoring telegraf prometheus-client port <port> + + Port number used by connection, default is ``9273`` + +Example: + +.. code-block:: none + + set service monitoring telegraf prometheus-client + +.. code-block:: none + + vyos@r14:~$ curl --silent localhost:9273/metrics | egrep -v "#" | grep cpu_usage_system + cpu_usage_system{cpu="cpu-total",host="r14"} 0.20040080160320556 + cpu_usage_system{cpu="cpu0",host="r14"} 0.17182130584191915 + cpu_usage_system{cpu="cpu1",host="r14"} 0.22896393817971655 + +Splunk +====== +Telegraf output plugin splunk_. HTTP Event Collector. + +.. cfgcmd:: set service monitoring telegraf splunk authentication insecure + + Use TLS but skip host validation + +.. cfgcmd:: set service monitoring telegraf splunk authentication token <token> + + Authorization token + +.. cfgcmd:: set service monitoring telegraf splunk authentication url <url> + + Remote URL to Splunk collector + +Example: + +.. code-block:: none + + set service monitoring telegraf splunk authentication insecure + set service monitoring telegraf splunk authentication token 'xxxxf5b8-xxxx-452a-xxxx-43828911xxxx' + set service monitoring telegraf splunk url 'https://192.0.2.10:8088/services/collector' Telegraf ======== +Monitoring functionality with ``telegraf`` and ``InfluxDB 2`` is provided. Telegraf is the open source server agent to help you collect metrics, events and logs from your routers. @@ -43,3 +144,7 @@ An example of a configuration that sends ``telegraf`` metrics to remote set service monitoring telegraf port '8086' set service monitoring telegraf source 'all' set service monitoring telegraf url 'http://r1.influxdb2.local' + +.. _azure-data-explorer: https://github.com/influxdata/telegraf/tree/master/plugins/outputs/azure_data_explorer +.. _prometheus-client: https://github.com/influxdata/telegraf/tree/master/plugins/outputs/prometheus_client +.. _splunk: https://www.splunk.com/en_us/blog/it/splunk-metrics-via-telegraf.html
\ No newline at end of file diff --git a/docs/configuration/service/ssh.rst b/docs/configuration/service/ssh.rst index ad410a3c..baf17035 100644 --- a/docs/configuration/service/ssh.rst +++ b/docs/configuration/service/ssh.rst @@ -109,6 +109,36 @@ Configuration Specify name of the :abbr:`VRF (Virtual Routing and Forwarding)` instance. +Dynamic-protection +================== +Protects host from brute-force attacks against +SSH. Log messages are parsed, line-by-line, for recognized patterns. If an +attack, such as several login failures within a few seconds, is detected, the +offending IP is blocked. Offenders are unblocked after a set interval. + +.. cfgcmd:: set service ssh dynamic-protection + + Allow ``ssh`` dynamic-protection. + +.. cfgcmd:: set service ssh dynamic-protection allow-from <address | prefix> + + Whitelist of addresses and networks. Always allow inbound connections from + these systems. + +.. cfgcmd:: set service ssh dynamic-protection block-time <sec> + + Block source IP in seconds. Subsequent blocks increase by a factor of 1.5 + The default is 120. + +.. cfgcmd:: set service ssh dynamic-protection detect-time <sec> + + Remember source IP in seconds before reset their score. The default is 1800. + +.. cfgcmd:: set service ssh dynamic-protection threshold <sec> + + Block source IP when their cumulative attack score exceeds threshold. The + default is 30. + Operation ========= |