Syslog

The nv unset commands remove the configuration you set with the equivalent nv set commands. This guide only describes an nv unset command if it differs from the nv set command.

nv set service syslog <vrf-id> server <server-id>

Configures the remote syslog server.

Cumulus 5.13 and later does not provide this command. Use the nv set system syslog server <server-id> command instead.

Command Syntax

Syntax	Description
`<vrf-id>`	The VRF you want to configure.
`<server-id>`	The hostname or IP address of the `syslog` server.

Version History

Introduced in Cumulus Linux 5.0.0

Example

cumulus@switch:~$ nv set service syslog default server 192.168.0.254

nv set service syslog <vrf-id> server <server-id> port

Configures the port number of the remote syslog server.

Cumulus 5.13 and later does not provide this command. Use the nv set system syslog server <server-id> port command instead.

Command Syntax

Syntax	Description
`<vrf-id>`	The VRF you want to configure.
`<server-id>`	The hostname or IP address of the `syslog` server.

Version History

Introduced in Cumulus Linux 5.0.0

Example

cumulus@switch:~$ nv set service syslog default server 192.168.0.254 port 601

nv set service syslog <vrf-id> server <server-id> protocol

Configures the protocol you want to use to transmit syslog data. You can specify either UDP or TCP.

Cumulus 5.13 and later does not provide this command. Use the nv set system syslog server <server-id> protocol command instead.

Command Syntax

Syntax	Description
`<vrf-id>`	The VRF you want to configure.
`<server-id>`	The hostname or IP address of the `syslog` server.

Version History

Introduced in Cumulus Linux 5.0.0

Example

cumulus@switch:~$ nv set service syslog default server 192.168.0.254 protocol tcp

nv set system syslog format

Sets the log format. You can set the log format to:

Standard (the default syslog format with a standard template).
WELF (WebTrends Enhanced Log Format) and provide an optional firewall name.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog format welf firewall-name security-gateway

nv set system syslog selector <selector-id> facility

Sets a syslog filtering rule to group logs based on their source, such as auth or cron.

Command Syntax

Syntax	Description
`<selector-id>`	The name of the filter selector.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog selector SELECTOR1 facility cron

nv set system syslog selector <selector-id> filter <filter-id> action

Sets a syslog filtering rule action to filter logs that match a certain regular expression. You can specify include or exclude.

Command Syntax

Syntax	Description
`<selector-id>`	The name of the filter selector.
`<filter-id>`	The filter ID.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog selector SELECTOR2 filter 10 action exclude

nv set system syslog selector <selector-id> filter <filter-id> match

Sets a syslog filtering rule to filter logs that match a certain regular expression.

Command Syntax

Syntax	Description
`<selector-id>`	The name of the filter selector.
`<filter-id>`	The filter ID.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog selector SELECTOR2 filter 10 match .*Flush Journal.+$

nv set system syslog selector <selector-id> program-name

Sets a syslog filtering rule to filter logs based on the application that generates them.

Command Syntax

Syntax	Description
`<selector-id>`	The name of the filter selector.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog selector SELECTOR2 program-name switchd

nv set system syslog selector <selector-id> severity

Sets a syslog filtering rule to filter logs based on the severity level.

Command Syntax

Syntax	Description
`<selector-id>`	The name of the filter selector.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog selector SELECTOR2 severity debug

nv set system syslog server <server-id>

Configures the port of the remote syslog server.

Cumulus 5.12 and earlier does not provide this command. Use the nv set service syslog <vrf-id> server <server-id> command instead.

Command Syntax

Syntax	Description
`<server-id>`	The hostname or IP address of the `syslog` server.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog server 192.168.0.254

nv set system syslog server <server-id> port

Configures the port of the remote syslog server.

Cumulus 5.12 and earlier does not provide this command. Use the nv set service syslog <vrf-id> server <server-id> port command instead.

Command Syntax

Syntax	Description
`<server-id>`	The hostname or IP address of the `syslog` server.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog server 192.168.0.254 port 601

nv set system syslog server <server-id> protocol

Configures the protocol you want to use to transmit syslog data. You can specify either UDP or TCP.

Cumulus 5.12 and earlier does not provide this command. Use the nv set service syslog <vrf-id> server <server-id> protocol command instead.

Command Syntax

Syntax	Description
`<server-id>`	The hostname or IP address of the `syslog` server.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog server 192.168.0.254 protocol tcp

nv set system syslog server <server-id> vrf <vrf-id>

Sets the VRF in which the syslog server runs. By default, the syslog server runs in the default VRF.

Command Syntax

Syntax	Description
`<server-id>`	The hostname or IP address of the `syslog` server.
`<vrf-id>`	The VRF you want to configure.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog server 192.168.0.254 vrf mgmt

nv set system syslog severity

Sets the global severity level of logs to debug, info, notice, warn, error, critical, or none. The default setting is none.

Version History

Introduced in Cumulus Linux 5.13.0

Example

cumulus@switch:~$ nv set system syslog severity notice