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Monit Rules

Posted on July 27, 2010 by TimIgoe

As a follow on from my post on Monit, I have compiled a selection of rules that can be used to monitor various services on your server.

check process sshd with pidfile /var/run/sshd.pid start program "/etc/init.d/sshd start" stop program "/etc/init.d/sshd stop" if failed port 22 protocol ssh for 3 cycles then restart if 5 restarts within 5 cycles then timeout

check process postfix with pidfile /var/spool/postfix/pid/master.pid start program = "/etc/init.d/postfix start" stop program = "/etc/init.d/postfix stop" if failed port 25 protocol smtp for 3 cycles then restart if 5 restarts within 5 cycles then timeout

check process mysql with pidfile /var/run/mysqld/mysqld.pid group database start program = "/etc/init.d/mysqld start" stop program = "/etc/init.d/mysqld stop" if failed unixsocket /var/lib/mysql/mysql.sock protocol mysql for 3 cycles then restart if 5 restarts within 5 cycles then timeout

check filesystem rootfs with path / if space usage > 90% 5 times within 15 cycles then alert

check system localhost if loadavg (1min) > 10 then alert if loadavg (5min) > 7 then alert if memory usage > 95% then alert if cpu usage (user) > 95% then alert if cpu usage (system) > 70% then alert if cpu usage (wait) > 80% then alert