SSH Server

nv show system ssh-server

Shows SSH server configuration on the switch.

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server
                             applied          
---------------------------  -----------------
authentication-retries       6                
inactive-timeout             0                
login-timeout                120              
max-sessions-per-connection  10               
permit-root-login            prohibit-password
state                        enabled          
max-unauthenticated                           
  session-count              100              
  throttle-percent           30               
  throttle-start             10  

nv show system ssh-server max-unauthenticated

Shows the number of unauthenticated SSH sessions allowed before throttling starts, the starting percentage of connections to reject above the throttle start count before reaching the session count limit, and the maximum number of unauthenticated SSH sessions allowed.

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server max-unauthenticated
                  applied
----------------  -------
session-count     100    
throttle-percent  30     
throttle-start    10 

nv show system ssh-server vrf

Shows the VRFs that allow SSH sessions.

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server vrf

nv show system ssh-server vrf <vrf-id>

Shows SSH session information for a specific VRF.

Command Syntax

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server vrf RED

nv show system ssh-server allow-users

Shows the users that are allowed to establish an SSH session.

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server allow-users

nv show system ssh-server allow-users <user-id>

Shows session information for a specific user allowed to establish an SSH session.

Command Syntax

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server allow-users user1

nv show system ssh-server deny-users

Shows the users that are not allowed to establish an SSH session.

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server deny-users

nv show system ssh-server deny-users <user-id>

Shows information for a specific user not allowed to establish an SSH session.

Command Syntax

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server deny-users user3

nv show system ssh-server port

Shows TCP port numbers that listen for incoming SSH sessions.

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server port

nv show system ssh-server port <port-id>

Shows information about a TCP port number that listens for incoming SSH sessions.

Command Syntax

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server port 443

nv show system ssh-server active-sessions

Shows the current number of active SSH sessions on the switch.

Version History

Introduced in Cumulus Linux 5.6.0

Example

cumulus@switch:~$ nv show system ssh-server active-sessions
Peer Address:Port    Local Address:Port      State
-------------------  ----------------------  -----
192.168.200.1:46528  192.168.200.11%mgmt:22  ESTAB