Monitoring with OMD (with Nagios Core) on Debian 7 Wheezy

Monday, August 18th, 2014 | Dennis D. Spreen | Debian, Monitoring, Nagios

As Centreon (my favourite monitoring tool with nagios core) still does not support PHP 5.4+ and my boxes are now on Debian 7 (with PHP 5.4) and I didn’t want to downgrade to PHP 5.3 (for various reasons), I’ve searched for an alternative frontend for nagios. Well, I’ve found a lot but only to mention a few here:  Nagios XI (free for small environments => max. 7 hosts, oh come on, with vms on the run, really way too few), Adagios (looks nice and clean) and finally OMD which got me with its easy setup on debian 7.

I. Server setup
Let’s go:
1. Debian 7 minimal installation.

2. First step is to import the gpg key for the OMD repository. This step has to be done only once.

gpg --keyserver keys.gnupg.net --recv-keys F8C1CA08A57B9ED7
gpg --armor --export F8C1CA08A57B9ED7 | apt-key add -

3. Add the repository to your sources list:

echo 'deb http://labs.consol.de/repo/stable/debian wheezy main' >> /etc/apt/sources.list
apt-get update

Check the OMD package with

apt-cache search omd

You’ll see something like this:

..
omd - Open Source Monitoring Distribution
omd-1.10 - Open Source Monitoring Distribution, containing Nagios,

4. Install OMD

apt-get install omd

5. Choose a MySQL root password

6. Add a site to OMD

omd create mysite

7. Start OMD

omd start

check the web frontend http://myhost/mysite The default web user is omdadmin with password omd

8. Choose your favourite GUI (CHECK_MK recommended), you may set this one as standard (see welcome page bottom)

II. Agent setup
In order to use the new check_mk agent on your monitored hosts you’ll need to

1. Install agent packages on your monitored host

apt-get install xinetd check-mk-agent check-mk-agent-logwatch

2. Enable xinetd configuration:

nano /etc/xinetd.d/check_mk

add your monitor server ip address to only_from and enable the check by setting disable = no

3. Restart xinetd

/etc/init.d/xinetd restart

Now you’re able to add the services from your monitored host.

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4 Comments to Monitoring with OMD (with Nagios Core) on Debian 7 Wheezy

Peter
October 31, 2014

Hi there!
Great and simple tutorial, thanks!
Does nagios-core need to be installed before?

Dennis
November 4, 2014

No, this is a tutorial starting with a clean Debian 7 minimal installation 😉

James
January 21, 2015

Thanks Dennis, followed to a T (wiped partions and started over) and it works.

Now just need to know how to use it for a home network data usage monitoring station. 🙂

James
January 21, 2015

Want to find out who’s being a hog.

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About Dennis D. Spreen

I'm an avid programmer working on a variety of platforms in a variety of languages with a wide technical interest.

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