Nagios is a free service monitoring system, that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.
In this tutorial I will show you how to install Nagios on Debian 6. For this, I will use a fresh installed Debian 6 with minimalistic packages.

Step1. Install Nagios packages:

By default, Nagios packages are already included in Debian 6 main repository. To install them run this command:

[email protected]:/# apt-get install nagios*

This command will install all packages needed by nagios to work properly.


Step2. Now you will be presented with the question that you need to fill in the information required:

You will be asked first to enter the password for Admin. Choose a strong password and confirm it.


NOTE: This is the username and password you will use to log in to your nagios  installation after configuration is complete. Continue Reading...
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