<?xml version="1.0"?> <!--SSH configuration --> <interfaceDefinition> <node name="service"> <children> <node name="ssh" owner="${vyos_conf_scripts_dir}/ssh.py"> <properties> <help>Secure Shell (SSH)</help> <priority>500</priority> </properties> <children> <node name="access-control"> <properties> <help>SSH user/group access controls. Directives are processed in the following order: deny-users, allow-users, deny-groups and allow-groups.</help> </properties> <children> <node name="allow"> <properties> <help>Allow user/group SSH access</help> </properties> <children> <leafNode name="group"> <properties> <help>Allow members of a group to login</help> <constraint> <regex>[a-z_][a-z0-9_-]{1,31}[$]?</regex> </constraint> <constraintErrorMessage>illegal characters or more than 32 characters</constraintErrorMessage> <multi/> </properties> </leafNode> <leafNode name="user"> <properties> <help>Allow specific users to login</help> <constraint> <regex>[a-z_][a-z0-9_-]{1,31}[$]?</regex> </constraint> <constraintErrorMessage>illegal characters or more than 32 characters</constraintErrorMessage> <multi/> </properties> </leafNode> </children> </node> <node name="deny"> <properties> <help>Deny user/group SSH access</help> </properties> <children> <leafNode name="group"> <properties> <help>Disallow members of a group to login</help> <constraint> <regex>[a-z_][a-z0-9_-]{1,31}[$]?</regex> </constraint> <constraintErrorMessage>illegal characters or more than 32 characters</constraintErrorMessage> <multi/> </properties> </leafNode> <leafNode name="user"> <properties> <help>Disallow specific users to login</help> <constraint> <regex>[a-z_][a-z0-9_-]{1,31}[$]?</regex> </constraint> <constraintErrorMessage>illegal characters or more than 32 characters</constraintErrorMessage> <multi/> </properties> </leafNode> </children> </node> </children> </node> <leafNode name="ciphers"> <properties> <help>Allowed ciphers</help> <completionHelp> <!-- generated by ssh -Q cipher | tr '\n' ' ' as this will not change dynamically --> <list>3des-cbc aes128-cbc aes192-cbc aes256-cbc rijndael-cbc@lysator.liu.se aes128-ctr aes192-ctr aes256-ctr aes128-gcm@openssh.com aes256-gcm@openssh.com chacha20-poly1305@openssh.com</list> </completionHelp> <constraint> <regex>^(3des-cbc|aes128-cbc|aes192-cbc|aes256-cbc|rijndael-cbc@lysator.liu.se|aes128-ctr|aes192-ctr|aes256-ctr|aes128-gcm@openssh.com|aes256-gcm@openssh.com|chacha20-poly1305@openssh.com)$</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> <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)$</regex> </constraint> </properties> </leafNode> <leafNode name="listen-address"> <properties> <help>Local addresses SSH service should listen on</help> <valueHelp> <format>ipv4</format> <description>IP address to listen for incoming connections</description> </valueHelp> <valueHelp> <format>ipv6</format> <description>IPv6 address to listen for incoming connections</description> </valueHelp> <multi/> <constraint> <validator name="ipv4-address"/> <validator name="ipv6-address"/> </constraint> </properties> </leafNode> <leafNode name="loglevel"> <properties> <help>Log level</help> <completionHelp> <list>QUIET FATAL ERROR INFO VERBOSE</list> </completionHelp> <valueHelp> <format>QUIET</format> <description>stay silent</description> </valueHelp> <valueHelp> <format>FATAL</format> <description>log fatals only</description> </valueHelp> <valueHelp> <format>ERROR</format> <description>log errors and fatals only</description> </valueHelp> <valueHelp> <format>INFO</format> <description>default log level</description> </valueHelp> <valueHelp> <format>VERBOSE</format> <description>enable logging of failed login attempts</description> </valueHelp> <constraint> <regex>^(QUIET|FATAL|ERROR|INFO|VERBOSE)$</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>1-65535</format> <description>Numeric IP port</description> </valueHelp> <multi/> <constraint> <validator name="numeric" argument="--range 1-65535"/> </constraint> </properties> <defaultValue>22</defaultValue> </leafNode> <leafNode name="client-keepalive-interval"> <properties> <help>Enable transmission of keepalives from server to client</help> <valueHelp> <format>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/interface-vrf.xml.i> </children> </node> </children> </node> </interfaceDefinition>