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Summary: a utility for monitoring and managing daemons or similar programs running on a Unix system.
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Monit is a utility for managing and monitoring processes, programs, files, directories and filesystems on a UNIX system.
To install Package:Monit:
# emerge monit
Config file of monit resides in /etc/monitrc. And there is a item to specify a config directory. Uncomment if needed.
## It is possible to include additional configuration parts from other files or ## directories. # # include /etc/monit.d/* #
Users added to the monit or users group will be able to manipulate monit through the web interface.
# gpasswd -a $USER monit
# gpasswd -a $USER users
passwords can be streamed to monits web interface, disable it all together after it is setup
for security purposes change this entry
this is the preferred method to run monit
ca:12345:ctrlaltdel:/sbin/shutdown -r now # Run monit in standard runlevels mo:2345:respawn:/usr/bin/monit -Ic /etc/monitrc # Used by /etc/init.d/xdm to control DM startup.
to start monit immediately after changing inittab
# telinit q
prefer inittab method over rc services
To start the service at boot.
# rc-update add monit default
To start the service immediately.
# /etc/init.d/monit start
This hourly cron script will check to make sure monit has not crashed. As this uses pgrep, make sure to not name it monit.
#!/bin/bash if ! pgrep monit >/dev/null;then rc-service monit restart fi
Monit relies upon pid files. For daemons that do not create a pidfile: a work around is needed.
Auto Restart Mysql
check process mysql with pidfile /var/run/mysqld/mysqld.pid start program = "/bin/bash -c 'rc-service mysql start'" stop program = "/bin/bash -c 'rc-service mysql stop'"
Navigate to http://localhost:2812/ & login using your edited configuration line or admin / monit if you have not changed it yet.