userdoc:tt_monit_monitoring [AstLinux Documentation]

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====== Monit - Processes and Applications Monitoring ======

[[http://mmonit.com/monit/|Monit]] is a free open source utility for managing and  monitoring; networks, processes, programs, files, directories and filesystems on a UNIX system. Monit can conduct automatic maintenance and repair and can execute meaningful causal actions in error situations.

!!Note: AstLinux 1.2.2 or later is required!!
==== Monit Configuration ====

The AstLinux Web Interface is used for configuration, click on **Configure Monit**\\

Network tab -> Network Services:\\
{{:userdoc:monit-network-tab.png?nolink|Configure Monit}}

Enable by clicking on "Configure Monit" and enable "Monitoring", additionally you will have a few options:

{{:userdoc:monit-server-config.jpg?nolink|Server Config}}

!!Tip ->!! If your Monit config includes a "check network" for a 1 GB interface, it is suggested to set the "Check Interval" to 30 seconds.

{{:userdoc:monit-notifications-config.jpg?nolink|Notifications Config}}

The "To" address entry may include multiple space separated email addresses. Monit doesn't work with msmtp-aliases!\\ 
But you can define multiple ''alert user@example.com'' entries in the Monit config (one line per entry).

!!Note ->!! Multiple email addresses currently do not work, neither global nor local! Only the last email address is used :-( (patch is in work!)(2020-06-08)

The configuration is autogenerated. You just need to enable Monitoring and enter the Monit notification email address.

Once Monit has been enabled and restarted, the Monit services may be customized by using the Edit tab...

{{:userdoc:monit-edit-services.jpg?nolink|Edit Monit Services}}

Or use the CLI and edit the file: ''/mnt/kd/monit/monit.d/services.conf''

Note that all filenames matching ''/mnt/kd/monit/monit.d/*.conf'' will be included in the configuration.

Apply changes by restarting Monit.

!!Tip ->!! From the CLI, a handy command to check the syntax of your ''monitrc'' file and all included ''monit.d/*.conf'' files...

  monit -t

should respond with something like: ''Control file syntax OK''

If you need a more specialized base configuration, copy ''/etc/monit/monitrc'' to ''/mnt/kd/monit/monitrc'', edit it and restart Monit.
==== Monit Web Interface ====

By default the Monit tab is not shown, enable it via the Prefs tab...\\
{{:userdoc:monit-show-monit-tab.png?nolink|Show Monit Tab}}

The "Monit Service Manager" may be explored by using the Monit tab:\\
{{:userdoc:monit-tab.png?nolink|Monit Tab}}

!!Tip ->!! If you prefer to view the "Monit Service Manager" in a separate browser window, ex. for host "pbx" use URL:

  https://pbx/admin/monit/


==== Documentation ====

The documentation can be found at:

http://mmonit.com/monit/documentation/monit.html

http://mmonit.com/wiki/

Most recent sample ''monitrc'' configuration file:

https://bitbucket.org/tildeslash/monit/raw/HEAD/monitrc
==== Monit Debug ====

If you need to debug Monit for some reason:

  service monit stop
  monit -c /etc/monit/monitrc -vv -I 2>&1 | tee /mnt/kd/monit_debug.log