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<?xml version="1.0"?>
<interfaceDefinition>
<node name="service">
<properties>
<help>System services</help>
</properties>
<children>
<node name="ssh" owner="${vyos_conf_scripts_dir}/service_ssh.py">
<properties>
<help>Secure Shell (SSH)</help>
<priority>1000</priority>
</properties>
<children>
<node name="access-control">
<properties>
<help>SSH user/group access controls</help>
</properties>
<children>
<node name="allow">
<properties>
<help>Allow user/group SSH access</help>
</properties>
<children>
#include <include/ssh-group.xml.i>
#include <include/ssh-user.xml.i>
</children>
</node>
<node name="deny">
<properties>
<help>Deny user/group SSH access</help>
</properties>
<children>
#include <include/ssh-group.xml.i>
#include <include/ssh-user.xml.i>
</children>
</node>
</children>
</node>
<leafNode name="ciphers">
<properties>
<help>Allowed ciphers</help>
<completionHelp>
<!-- generated by ssh -Q cipher | tr '\n' ' ' as this will not change dynamically -->
<list>3des-cbc aes128-cbc aes192-cbc aes256-cbc rijndael-cbc@lysator.liu.se aes128-ctr aes192-ctr aes256-ctr aes128-gcm@openssh.com aes256-gcm@openssh.com chacha20-poly1305@openssh.com</list>
</completionHelp>
<constraint>
<regex>(3des-cbc|aes128-cbc|aes192-cbc|aes256-cbc|rijndael-cbc@lysator.liu.se|aes128-ctr|aes192-ctr|aes256-ctr|aes128-gcm@openssh.com|aes256-gcm@openssh.com|chacha20-poly1305@openssh.com)</regex>
</constraint>
<multi/>
</properties>
</leafNode>
<leafNode name="disable-host-validation">
<properties>
<help>Disable IP Address to Hostname lookup</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="disable-password-authentication">
<properties>
<help>Disable password-based authentication</help>
<valueless/>
</properties>
</leafNode>
<node name="dynamic-protection">
<properties>
<help>Allow dynamic protection</help>
</properties>
<children>
<leafNode name="block-time">
<properties>
<help>Block source IP in seconds. Subsequent blocks increase by a factor of 1.5</help>
<valueHelp>
<format>u32:1-65535</format>
<description>Time interval in seconds for blocking</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 1-65535"/>
</constraint>
</properties>
<defaultValue>120</defaultValue>
</leafNode>
<leafNode name="detect-time">
<properties>
<help>Remember source IP in seconds before reset their score</help>
<valueHelp>
<format>u32:1-65535</format>
<description>Time interval in seconds</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 1-65535"/>
</constraint>
</properties>
<defaultValue>1800</defaultValue>
</leafNode>
<leafNode name="threshold">
<properties>
<help>Block source IP when their cumulative attack score exceeds threshold</help>
<valueHelp>
<format>u32:1-65535</format>
<description>Threshold score</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 1-65535"/>
</constraint>
</properties>
<defaultValue>30</defaultValue>
</leafNode>
<leafNode name="allow-from">
<properties>
<help>Always allow inbound connections from these systems</help>
<valueHelp>
<format>ipv4</format>
<description>Address to match against</description>
</valueHelp>
<valueHelp>
<format>ipv4net</format>
<description>IPv4 address and prefix length</description>
</valueHelp>
<valueHelp>
<format>ipv6</format>
<description>IPv6 address to match against</description>
</valueHelp>
<valueHelp>
<format>ipv6net</format>
<description>IPv6 address and prefix length</description>
</valueHelp>
<constraint>
<validator name="ip-address"/>
<validator name="ip-prefix"/>
</constraint>
<multi/>
</properties>
</leafNode>
</children>
</node>
<leafNode name="hostkey-algorithm">
<properties>
<help>Allowed host key signature algorithms</help>
<completionHelp>
<!-- generated by ssh -Q HostKeyAlgorithms | tr '\n' ' ' as this will not change dynamically -->
<list>ssh-ed25519 ssh-ed25519-cert-v01@openssh.com sk-ssh-ed25519@openssh.com sk-ssh-ed25519-cert-v01@openssh.com ssh-rsa rsa-sha2-256 rsa-sha2-512 ssh-dss ecdsa-sha2-nistp256 ecdsa-sha2-nistp384 ecdsa-sha2-nistp521 sk-ecdsa-sha2-nistp256@openssh.com webauthn-sk-ecdsa-sha2-nistp256@openssh.com ssh-rsa-cert-v01@openssh.com rsa-sha2-256-cert-v01@openssh.com rsa-sha2-512-cert-v01@openssh.com ssh-dss-cert-v01@openssh.com ecdsa-sha2-nistp256-cert-v01@openssh.com ecdsa-sha2-nistp384-cert-v01@openssh.com ecdsa-sha2-nistp521-cert-v01@openssh.com sk-ecdsa-sha2-nistp256-cert-v01@openssh.com</list>
</completionHelp>
<multi/>
<constraint>
<regex>(ssh-ed25519|ssh-ed25519-cert-v01@openssh.com|sk-ssh-ed25519@openssh.com|sk-ssh-ed25519-cert-v01@openssh.com|ssh-rsa|rsa-sha2-256|rsa-sha2-512|ssh-dss|ecdsa-sha2-nistp256|ecdsa-sha2-nistp384|ecdsa-sha2-nistp521|sk-ecdsa-sha2-nistp256@openssh.com|webauthn-sk-ecdsa-sha2-nistp256@openssh.com|ssh-rsa-cert-v01@openssh.com|rsa-sha2-256-cert-v01@openssh.com|rsa-sha2-512-cert-v01@openssh.com|ssh-dss-cert-v01@openssh.com|ecdsa-sha2-nistp256-cert-v01@openssh.com|ecdsa-sha2-nistp384-cert-v01@openssh.com|ecdsa-sha2-nistp521-cert-v01@openssh.com|sk-ecdsa-sha2-nistp256-cert-v01@openssh.com)</regex>
</constraint>
</properties>
</leafNode>
<leafNode name="key-exchange">
<properties>
<help>Allowed key exchange (KEX) algorithms</help>
<completionHelp>
<!-- generated by ssh -Q kex | tr '\n' ' ' as this will not change dynamically -->
<list>diffie-hellman-group1-sha1 diffie-hellman-group14-sha1 diffie-hellman-group14-sha256 diffie-hellman-group16-sha512 diffie-hellman-group18-sha512 diffie-hellman-group-exchange-sha1 diffie-hellman-group-exchange-sha256 ecdh-sha2-nistp256 ecdh-sha2-nistp384 ecdh-sha2-nistp521 curve25519-sha256 curve25519-sha256@libssh.org</list>
</completionHelp>
<multi/>
<constraint>
<regex>(diffie-hellman-group1-sha1|diffie-hellman-group14-sha1|diffie-hellman-group14-sha256|diffie-hellman-group16-sha512|diffie-hellman-group18-sha512|diffie-hellman-group-exchange-sha1|diffie-hellman-group-exchange-sha256|ecdh-sha2-nistp256|ecdh-sha2-nistp384|ecdh-sha2-nistp521|curve25519-sha256|curve25519-sha256@libssh.org)</regex>
</constraint>
</properties>
</leafNode>
#include <include/listen-address.xml.i>
<leafNode name="loglevel">
<properties>
<help>Log level</help>
<completionHelp>
<list>quiet fatal error info verbose</list>
</completionHelp>
<valueHelp>
<format>quiet</format>
<description>stay silent</description>
</valueHelp>
<valueHelp>
<format>fatal</format>
<description>log fatals only</description>
</valueHelp>
<valueHelp>
<format>error</format>
<description>log errors and fatals only</description>
</valueHelp>
<valueHelp>
<format>info</format>
<description>default log level</description>
</valueHelp>
<valueHelp>
<format>verbose</format>
<description>enable logging of failed login attempts</description>
</valueHelp>
<constraint>
<regex>(quiet|fatal|error|info|verbose)</regex>
</constraint>
</properties>
<defaultValue>info</defaultValue>
</leafNode>
<leafNode name="mac">
<properties>
<help>Allowed message authentication code (MAC) algorithms</help>
<completionHelp>
<!-- generated by ssh -Q mac | tr '\n' ' ' as this will not change dynamically -->
<list>hmac-sha1 hmac-sha1-96 hmac-sha2-256 hmac-sha2-512 hmac-md5 hmac-md5-96 umac-64@openssh.com umac-128@openssh.com hmac-sha1-etm@openssh.com hmac-sha1-96-etm@openssh.com hmac-sha2-256-etm@openssh.com hmac-sha2-512-etm@openssh.com hmac-md5-etm@openssh.com hmac-md5-96-etm@openssh.com umac-64-etm@openssh.com umac-128-etm@openssh.com</list>
</completionHelp>
<constraint>
<regex>(hmac-sha1|hmac-sha1-96|hmac-sha2-256|hmac-sha2-512|hmac-md5|hmac-md5-96|umac-64@openssh.com|umac-128@openssh.com|hmac-sha1-etm@openssh.com|hmac-sha1-96-etm@openssh.com|hmac-sha2-256-etm@openssh.com|hmac-sha2-512-etm@openssh.com|hmac-md5-etm@openssh.com|hmac-md5-96-etm@openssh.com|umac-64-etm@openssh.com|umac-128-etm@openssh.com)</regex>
</constraint>
<multi/>
</properties>
</leafNode>
<leafNode name="port">
<properties>
<help>Port for SSH service</help>
<valueHelp>
<format>u32:1-65535</format>
<description>Numeric IP port</description>
</valueHelp>
<multi/>
<constraint>
<validator name="numeric" argument="--range 1-65535"/>
</constraint>
</properties>
<defaultValue>22</defaultValue>
</leafNode>
<node name="rekey">
<properties>
<help>SSH session rekey limit</help>
</properties>
<children>
<leafNode name="data">
<properties>
<help>Threshold data in megabytes</help>
<valueHelp>
<format>u32:1-65535</format>
<description>Megabytes</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 1-65535"/>
</constraint>
</properties>
</leafNode>
<leafNode name="time">
<properties>
<help>Threshold time in minutes</help>
<valueHelp>
<format>u32:1-65535</format>
<description>Minutes</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 1-65535"/>
</constraint>
</properties>
</leafNode>
</children>
</node>
<leafNode name="client-keepalive-interval">
<properties>
<help>Enable transmission of keepalives from server to client</help>
<valueHelp>
<format>u32:1-65535</format>
<description>Time interval in seconds for keepalive message</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 1-65535"/>
</constraint>
</properties>
</leafNode>
#include <include/vrf-multi.xml.i>
</children>
</node>
</children>
</node>
</interfaceDefinition>
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