We have syslog-ng-client-3.0.5-1.rhel5 installed on several machines. However on 2 of those Nagios has flagged that there's an extra process with the command 'supervising syslog-ng'. Both machine1 and machine2 are Scientific Linux 5.4 (a RHEL clone) x86_64 Xen virtual machines with the exact same syslog-ng.conf: [root@machine1 ~]# ps -ef | grep syslog-ng root 24891 1 0 09:26 ? 00:00:00 supervising syslog-ng root 24892 24891 0 09:26 ? 00:00:00 /opt/syslog-ng/sbin/syslog-ng --no-caps [root@machine2 ~]# ps -ef | grep syslog root 1718 1695 0 09:38 pts/0 00:00:00 grep syslog root 2137 1 0 Feb01 ? 00:00:09 /opt/syslog-ng/sbin/syslog-ng --no-caps Can someone explain what this 'supervising' process is? Thanks Tim Edwards