Install Nagios on NethServer

Hi I would suggest not to compile from source. Just use the rpms.
This it is easier for upgrading. If you compile sourcecode you have to care for updates by yourself.
With install from repositories your nagios will be updated by the repository maintainer.
For that you have replace from wget till make in Step 3 and Step 5 with the following commands.
STEP 3:
yum install nagios.x86_64
STEP 5:
yum install nagios-plugins
yum install nagios-plugins-all.x86_64