Edit: /opt/dedrads/check_pop3 (2295B)
#!/bin/bash
# Changelog
# 2011-06-01:wtg Changed --failed_login to use $LINES variable and also show domains
LINESDEF="120000";
LINES=$LINESDEF
if [ $# -eq 3 ] && [ "$2" == "--lines" ];
then
LINES=$3;
#echo $LINES;
fi
#echo $LINES
function printUsage () {
echo "This script will check /var/log/maillog for a few common issues:"
echo =Check Basic Login Info=
echo;echo "$0 --login_email"
echo "Prints the email addresses with the most logins.";echo;
echo;echo "$0 --login_ip"
echo "Prints the IP addresses with the most logins.";echo;
echo;echo "$0 --login_failed"
echo "Prints highest number of failed logins by IP, address, and the both Address and IP.";echo;
echo;echo "$0 --option --lines NUMLINES"
echo "This will execute the option, checking NUMLINES back throgh the log file (default is ${LINESDEF})"
echo;echo "$0 --checkerror";
echo "Checks to see if you are hitting the maximum number allowed connections";
echo "(Use this if you get complaints of webmail/IMAP being 'slow'!";
echo;echo "$0 --help"
echo "You're looking at it!"
}
case $1 in
--login_ip)
tail -${LINES-45000} /var/log/maillog | grep pop3d | awk '{print $8}' | sed -e '/^$/d' | sort | uniq -c | sort -nk1
;;
--login_email)
tail -${LINES-45000} /var/log/maillog | grep pop3d | awk '/LOGIN/{print $7}' | sort | uniq -c | sort -nk1 | tail -2
;;
--login_failed)
echo "=Sorted by IP="
tail -${LINES-45000} /var/log/maillog | grep pop3d | awk '/LOGIN FAILED/{print $9 }' | sort | uniq -c | sort -nk1 | tail -15
echo "=Sorted by Address="
tail -${LINES-45000} /var/log/maillog | grep pop3d | awk '/LOGIN FAILED/{print $8 }' | sort | uniq -c | sort -nk1 | tail -15
echo "=Sorted by Domain="
tail -${LINES-45000} /var/log/maillog | grep pop3d | awk '/LOGIN FAILED/{gsub(/user=.*@/,"",$0);print $8 }' | sort | uniq -c | sort -nk1 | tail -15
echo "=Sorted by Address and IP="
tail -${LINES-45000} /var/log/maillog | grep pop3d | awk '/LOGIN FAILED/{print $8, $9}' | sort | uniq -c | sort -nk1 | tail -15
;;
--checkerror)
tail -${LINES-45000} /var/log/maillog |grep "maximum active connections";
;;
--help)
printUsage;
exit 0
;;
*)
printUsage;
exit 1
;;
esac