25-11
Catalyst 3560 Switch Software Configuration Guide
78-16156-01
Chapter 25 Configuring System Message Logging
Configuring System Message Logging
Step 1 Add a line such as the following to the file /etc/syslog.conf:
local7.debug /usr/adm/logs/cisco.log
The local7 keyword specifies the logging facility to be used; see Table 25-4 on page 25-12 for
information on the facilities. The debug keyword specifies the syslog level; see Table 25-3 on page 25-9
for information on the severity levels. The syslog daemon sends messages at this level or at a more
severe level to the file specified in the next field. The file must already exist, and the syslog daemon
must have permission to write to it.
Step 2 Create the log file by entering these commands at the UNIX shell prompt:
$ touch /var/log/cisco.log
$ chmod 666 /var/log/cisco.log
Step 3 Make sure the syslog daemon reads the new changes:
$ kill -HUP `cat /etc/syslog.pid`
For more information, see the man syslog.conf and man syslogd commands on your UNIX system.
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. This procedure is optional.
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.
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 25-3 on page 25-9 for level keywords.
Step 4
logging facility facility-type Configure the syslog facility. See Table 25-4 on page 25-12 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.
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