Part 3 of the four part installation procedure for Nagios involves the installation of Nagios Plugins with the pre-requisites and the actual Nagios Binaries already installed.
If you have jumped directly into this article, then it is worth to check the following:
Nagios Plugin Version: 1.4.11 (at the time of writing this article)
Let us download and install Nagios Plugins.
Download Nagios Plugins
Download the latest stable version on Nagios Plugins from
http://heanet.dl.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.11.tar.gz
Use wget to download directly to your debian linux system
debian4r2:/software# wget http://heanet.dl.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.11.tar.gz
Unzip and Untar the downloaded file
debian4r2:/software# tar -zxvf nagios-plugins-1.4.11.tar.gz
Change directory to the newly created nagios plugin directory
debian4r2:/software#cd Nagios-plugins-1.4.11
Run the configure script
debian4r2:/software/nagios-plugins-1.4.11# ./configure
Run the Make commands to compile and install the default plugins
debian4r2:/software/nagios-plugins-1.4.11# make && make install
That installs the Nagios plugins. That completes all the installations and the final part will be to configure the web interface, CGIs and password authetication for the Nagios website. Proceed to the final step to configure the webinterface CGIs and Authentication.