Configure hostgroups for Nagios

“If you’ve been following my Nagios articles here on
Ghacks (see “Easily extend Nagios’ functionality”
and “Quickly install Nagios on Ubuntu” for more
information) you are probably impressed with how powerful Nagios
is. Well, I can happily say you haven’t seen anything yet.
Nagios is amazing in it’s ability to extend and report. Of
course, along with this power comes a bit of work to be done by the
administrator. With Nagios there are no fancy widgets and wizards
to walk you through simple configurations. Nagios requires you to
get your fingers a bit dirty with the command line.

“One cool ability of Nagios is that it allows you to group
machines into services. Say, for instance, you have a number of
machines that serve as Web servers or Samba servers. Instead of
having to scroll around to find them, you can group those machines
together, by service, to make for much easier monitoring. In this
tutorial I am going to show you how to take advantage of this nifty
feature.”

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