How to configure rsyslog to run in native mode in RHEL5

Solution Verified - Updated -

Environment

  • Red Hat Enterprise Linux 5

Issue

  • rsyslogd can be run in compatibility mode and native mode. The default is compatibility mode, and you may see the following warning messages in /var/log/messages

    2010-07-15T17:25:31.146793+08:00 localhost rsyslogd: WARNING: rsyslogd is running in compatibility mode. Automatically generated config directives may interfer with your rsyslog.conf settings. We suggest upgrading your config and adding -c3 as the first rsyslogd option.
2010-07-15T17:25:31.150451+08:00 localhost rsyslogd: Warning: backward compatibility layer added to following directive to rsyslog.conf: ModLoad imudp
2010-07-15T17:25:31.151019+08:00 localhost rsyslogd: Warning: backward compatibility layer added to following directive to rsyslog.conf: UDPServerRun (null)
2010-07-15T17:25:31.151082+08:00 localhost rsyslogd: Name or service not known

Resolution

1. Modify /etc/sysconfig/rsyslog

SYSLOGD_OPTIONS="-c3"

2. Modify /etc/rsyslog.conf, add the following lines in top of the file

$ModLoad imudp
$UDPServerRun 514
$ModLoad imuxsock

3. Restart rsyslog service

# service rsyslog restart

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