User Interface Commands

System Message

nv show system message

	nv show system message Display banner messages for different terminal session events: pre-login, post-login and post-logout messages.
Syntax Description	N/A
Default	N/A
History	25.02.2002
Example	admin@nvos:~nv show system message operational applied ----------- ------------------------------------- ------------------------------------- pre-login NVOS switch NVOS switch post-login ███╗ ██╗██╗ ██╗ ██████╗ ███████╗ ███╗ ██╗██╗ ██╗ ██████╗ ███████╗ ████╗ ██║██║ ██║██╔═══██╗██╔════╝ ████╗ ██║██║ ██║██╔═══██╗██╔════╝ ██╔██╗ ██║██║ ██║██║ ██║███████╗ ██╔██╗ ██║██║ ██║██║ ██║███████╗ ██║╚██╗██║╚██╗ ██╔╝██║ ██║╚════██║ ██║╚██╗██║╚██╗ ██╔╝██║ ██║╚════██║ ██║ ╚████║ ╚████╔╝ ╚██████╔╝███████║ ██║ ╚████║ ╚████╔╝ ╚██████╔╝███████║ ╚═╝ ╚═══╝ ╚═══╝ ╚═════╝ ╚══════╝ ╚═╝ ╚═══╝ ╚═══╝ ╚═════╝ ╚══════╝ post-logout
REST API	GET https://<ip>/nvue_v1/system/message
Related Commands	nv set system message pre-login nv set system message post-login
Notes	Printed as raw, unformatted output

nv set/unset system message pre-login message

	nv set system message pre-login {message} nv unset system message pre-login Set/unset the pre-login message.
Syntax Description	message	The new pre-login message to set
Default	N/A
History	25.02.2002
Example	`admin@nvos:~$ nv set system message pre-login new-pre admin@nvos:~$ nv unset system message pre-login`
REST API	PATCH https://<ip>/nvue_v1/system/message
Related Commands	nv show system message
Notes

nv set/unset system message post-login message

	nv set system message post-login {message} nv unset system message post-login Set/unset the post-login message.
Syntax Description	message	The new post-login message to set
Default	N/A
History	25.02.2002
Example	`admin@nvos:~$ nv set system message post-login new-post admin@nvos:~$ nv unset system message post-login`
REST API	PATCH https://<ip>/nvue_v1/system/message
Related Commands	nv show system message
Notes

nv set/unset system message post-logout

	nv set system message post-logout nv unset system message post-logout Set/unset the post-logout message.
Syntax Description	message	The new post-logout message to set
Default	N/A
History	25.02.2002
Example	`admin@nvos:~$ nv set system message post-logout Goodbye`
REST API	PATCH https://<ip>/nvue_v1/system/message
Related Commands	nv show system message
Notes

SSH

show ssh-server

	nv show ssh-server Limit the maximum number of concurrent user sessions
Syntax Description	N/A
Default	100
History	25.02.2002
Example	admin@nvos:~$ nv show system ssh-server operational applied pending ---------------------- ----------- ------- ------- authentication-retries 6 6 6 inactive-timeout 15 15 60 login-record-period 1 1 1 login-timeout 120 120 120 max-sessions 100 100 50 [port] 22 22 22
REST API	GET https://<ip>/nvue_v1/system/ssh-server
Related Commands	nv show system ssh-server
Notes	Applied for new connections only.

nv set/unset system ssh-server inactive-timeout

	nv set/unset system ssh-server inactive-timeout [<integer time>] Configure inactive timeout for ssh connections in minutes <0-35000>
Syntax Description	time	Number of minutes: 0–35000 minutes
Default	15 minutes
History	25.02.2002
Example	`admin@nvos:~$ nv set system ssh-server inactive-timeout 300`
REST API	PATCH https://<ip>/nvue_v1/system/ssh-server
Related Commands	nv show system ssh-server
Notes	Applied for new connections only.

nv set/unset system ssh-server max-sessions

	nv set/unset system ssh-server max-sessions [<integer sessions>] Configuring the maximum number of ssh connections <3–100>
Syntax Description	sessions	Number of sessions: 3–100 sessions
Default	100
History	25.02.2002
Example	`admin@nvos:~$ nv set system ssh-server max-sessions 10`
REST API	PATCH https://<ip>/nvue_v1/system/ssh-server
Related Commands	nv show system ssh-server
Notes	Applied for new connections only.

nv set/unset system ssh-server port

	nv set/unset system ssh-server port <port-id> Configure the ports for the systems ssh-server
Syntax Description	port-id	TCP Port ID (integer:1 - 65535)
Default	22
History	25.02.2002
Example	`admin@nvos:~$ nv set system ssh-server port 777`
REST API	PATCH https://<ip>/nvue_v1/system/ssh-server
Related Commands	nv show system ssh-server
Notes	Multiple ports can be configured. By default, port 22 is used. Any user configuration will remove the default, the user need to configure port 22 explicitly.

Serial-Console

nv show system serial-console

	nv show system serial-console Show system serial console.
Syntax Description	N/A
Default	N/A
History	25.02.2002
Example	`admin@nvos:~$ nv show system serial-console operational applied pending ------------------ ----------- -------- -------- inactivity-timeout 15 15 50 sysrq-capabilities disabled disabled enabled`
REST API	GET https://<ip>/nvue_v1/system/serial-console
Related Commands	nv set system serial-console inactivity-timeout nv set system serial-console sysrq-capabilities
Notes	Applied after reconnection only.

nv set/unset system serial-console inactivity-timeout

	nv set/unset system serial-console inactivity-timeout Configure inactivity timeout for serial console in minutes <0-35000>
Syntax Description	N/A
Default	15
History	25.02.2002
Example	`admin@nvos:~$ nv set system serial-console inactivity-timeout 300`
REST API	PATCH https://<ip>/nvue_v1/system/serial-console
Related Commands	nv show system serial-console
Notes	Applied after reconnection only.

nv set/unset system serial-console sysrq-capabilities

	nv set/unset system serial-console sysrq-capabilities Enables or disables SysRq key capabilities.
Default	Disabled
History	25.02.2002
Example	`admin@nvos:~$ nv set system serial-console sysrq-capabilities enabled`
REST API	PATCH https://<ip>/nvue_v1/system/ssh-server
Related Commands	nv show system serial-console
Notes

Last updated: January 07, 2025