/var/log/messages

The messages log is the core system log file. It contains boot messages at system startup and other status messages when the system is running. IO errors, network errors, and other system errors are recorded in this file. Other information, such as a person's identity switch to root, is also listed here. If the service is running, such as a DHCP server, you can observe its activity in the messages file. Typically,/var/log/messages is the first file you want to view when troubleshooting.

Time User Events

Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z kernel:imklog 5.8.10, log Source =/proc/kmsg started.
Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z rsyslogd: [Origin software= "Rsyslogd" swversion= "5.8.10" x-pid= "785" x-info= " Http://www.rsyslog.com "] Start
Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z kernel:initializing cgroup Subsys cpuset
Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z kernel:initializing cgroup Subsys CPU
Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z kernel:linux version 2.6.32-573.22.1.el6.x86_64 ([email protected])
DEC 23:05:57 iz2ze4dm78raiqat6xo1q0z Kernel:kernel supported CPUs:
Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z Kernel:intel Genuineintel
Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z kernel:amd AUTHENTICAMD
Dec 23:05:57 iz2ze4dm78raiqat6xo1q0z Kernel:centaur centaurhauls

/var/log/messages