Check_mk and Ubuntu 14.04 Server

If you want a quick monitoring solution with a comprehensive list of automatically generated checks then check_mk is the way to go.

Requirements for this guide

  • Ubuntu 14.04 Server
  • Running Nagios3 installation

Agent

On the systems that you want to monitor you have to install the check-mk-agent and the xinetd package from the Ubuntu repos. Also recommended is the check-mk-agent-logwatch package.

Open the /etc/xinetd.d/check_mk file and change the disabled attribute from yes to no. Also uncomment the only_from attribute and adapt accordingly.

Restart the xinetd daemon:

/etc/init.d/xinetd restart

And check if the agent port is open:

netstat -tulpn | grep 6556

 

Server

On the system where the Nagios installation is running, install the check-mk-server package.

Adapt the check_mk configuration found at:

vim /etc/check_mk/main.mk

Insert the hosts you want to monitor.

Make an inventory of the hosts by running the following command:

su nagios -c "check_mk -I"

Check_mk will now automatically retrieve the possible checks for the hosts! Awesome! 😉

Write out the configuration by running the following:

su nagios -c "check_mk -O"

And restart Nagios. Voilá!

If you want nice visualizations of your data, then you also have to install the pnp4nagios package.

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