Munin is free open source server monitoring tool to monitor different aspect of the server. You can get more information about munin from http://munin-monitoring.org/.
Munin can be easily installed in Cpanel
Go to Home > cpanel > Mange Plugins in WHM, and then look for munin plugin and just tick on ‘Install and keep updated’
once it is install you will see munin on plugins section of WHM.
Installing plugins to Munin on Cpanel:
Munin itself comes with lots of plugins but all of these are not enable. You can find the list of plugins those are enabled in the Munin from following location:
/etc/munin/plugins ls -l
In Cpanel servers all the plugins are symbolic links from
So go to /usr/local/cpanel/3rdparty/share/munin/plugins/ and look for the file of the plugins you are looking for, if plugins are not there it might be in munin official site https://github.com/munin-monitoring/contrib/ OR you can find more information on http://munin-monitoring.org/wiki/Documentation
Installing plugins that exist in CPanel
If you find your plugins at /usr/local/cpanel/3rdparty/share/munin/plugins you have to create symbolic link of that file to /etc/munin/plugins folder.
for example if the plugin file name is myplugin then:
ln-s /usr/local/cpanel/3rdparty/munin/plugins/apache/myplugin /etc/munin/plugins/myplugin
once the symbolic link is created edit the config file cpanel.conf inside /etc/munin/plugin-conf.d
add new lines in the file as:
#You can add your other user and group settings and also passed extra parameter.
Once its saved, restart the munin node by
service munin-node restart
it will take 10-20 min to graph to be appear on the WHM munin plugin.