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miércoles, 14 de julio de 2010

Configuring the Syslog Server AIX.

Configuring the Syslog Server AIX.
This configuration example will be using " *.debug " which will log everything on the system.
#vi /etc/syslog.conf

*.debug /tmp/syslog.out rotate size 100k files 4

This entry will rotate the syslog.out file when it reaches 100k and will keep 4 files in the rotation.

Save the /etc/syslog.conf file and touch /tmp/syslog.out

# touch /tmp/syslog.out

#refresh -s syslogd
0513-095 The request for subsystem refresh was completed successfully.

NOTE: The syslogd daemon has configuration flags -r and -R that when used will not allow
the syslogd daemon to accept remote logging from clients.

-r Suppresses logging of messages received from remote hosts.
-R When specified, disables the facility to receive messages from the network using the internet domain socket.

Make sure these flags are not set when starting the daemon. It can be checked with:

# ps -ef |grep syslogd
root 569406 200806 0 Dec 22 - 0:01 /usr/sbin/syslogd -r

If any of these flags are running, then you must stop syslogd, clear out the entries from ODM and restart the daemon.

#stopsrc -s syslogd
#chssys -s syslogd -a ""
#startsrc -s syslogd

The -r flag should not show up.
#ps -ef |grep syslogd
root 569406 200806 0 Dec 22 - 0:01 /usr/sbin/syslogd

NOTE: The syslogd daemon listens on port 514, if there is a firewall in between, make sure this port is opened.

Configuring the Syslog Client.
This configuration example will be using " *.debug " which will log everything on the system.
#vi /etc/syslog.conf

*.debug @bones.austin.ibm.com

This entry will forward any information logged by " *.debug " to the Syslog Server bones.austin.ibm.com.

Save the /tmp/syslog.conf file and refresh the syslogd daemon.

# refresh -s syslogd
0513-095 The request for subsystem refresh was completed successfully.

To test the setup we can use the logger command.

# logger "This is a test"

You should see logged message in /tmp/syslog.out file on the Syslog Server bones.

To have better control over syslogd and its' logs, please refer to the man pages for further information.