To sanity check the rsyslog config files use:
rsyslogd -N1
Watching log files
Multitail is a nice utility to watch multiple log files at once. It also can color the output.
I usually use the command like this:
multitail -s 2 /var/log/apache2/site01_access.log /var/log/apache2/site02_access.log
http://www.vanheusden.com/multitail/index.php
Analyzing Apache Log Files
List Client IP and Count Hits
awk -F'[ “]+’ ‘$7 == “/” { ipcount[$1]++ } END { for (i in ipcount) { printf “%15s – %d\n”, i, ipcount[i] } }’ access.log
List Client IP and RDNS
cat access.log | awk ‘{print $1}’ | logresolve