You can use 'redhat-logviewer' to view various system logs. To have a list of all the system logs that it can view, refer to /etc/sysconfig/redhat-logviewer. The default list is:

SYSLOG=/var/log/messages
SECURELOG=/var/log/secure
MAILLOG=/var/log/maillog
CRONLOG=/var/log/cron
NEWSLOG=/var/log/spooler
BOOTLOG=/var/log/boot.log
CIPELOG=/var/log/cipe.log
DMESGLOG=/var/log/dmesg
HTTPDACCESSLOG=/var/log/httpd/access_log
HTTPDERRORLOG=/var/log/httpd/error_log
MYSQLLOG=/var/log/mysqld.log
RPMLOG=/var/log/rpmpkgs
TUXLOG=/var/log/tux
UP2DATELOG=/var/log/up2date
FTPLOG=/var/log/xferlog
XFREE86LOG=/var/log/XFree86.0.log

NB, if you get some error (KeyError: LANG) while loading it, invoke it like this:

LANG=C redhat-logviewer &