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26-11
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
OL-10101-02
Chapter 26 Configuring System Message Logging
Configuring System Message Logging
Configuring the UNIX System Logging Facility
When sending system log messages to an external device, you can cause the switch to identify its
messages as originating from any of the UNIX syslog facilities.
Beginning in privileged EXEC mode, follow these steps to configure UNIX system facility message
logging:
To remove a syslog server, use the no logging host global configuration command, and specify the syslog
server IP address. To disable logging to syslog servers, enter the no logging trap global configuration
command.
Table 26-4 lists the UNIX system facilities supported by the software. For more information about these
facilities, consult the operator’s manual for your UNIX operating system.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
logging host Log messages to a UNIX syslog server host by entering its IP address.
To build a list of syslog servers that receive logging messages, enter this
command more than once.
Step 3
logging trap level Limit messages logged to the syslog servers.
Be default, syslog servers receive informational messages and lower. See
Table 26-3 on page 26-8 for level keywords.
Step 4
logging facility facility-type Configure the syslog facility. See Table 26-4 on page 26-11 for
facility-type keywords.
The default is local7.
Step 5
end Return to privileged EXEC mode.
Step 6
show running-config Verify your entries.
Step 7
copy running-config startup-config (Optional) Save your entries in the configuration file.
Ta b l e 26-4 Logging Facility-Type Keywords
Facility Type Keyword Description
auth Authorization system
cron Cron facility
daemon System daemon
kern Kernel
local0-7 Locally defined messages
lpr Line printer system
mail Mail system
news USENET news
sys9 System use
sys10 System use
sys11 System use