Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes. Nagios requires a "nagios" user and group; create these before running the SlackBuild script. Examples: # groupadd -g 213 nagios # useradd -u 213 -d /dev/null -s /bin/false -g nagios nagios For some scripts to work, it is necessary to include the 'apache' user in the nagios group. For some functions (most notably the "map" function), you need to have X installed on your server. You do not have to start X though, nagios just needs some of the libraries and fonts. This SlackBuild installs the basic nagios system in /var/www/htdocs/ To change the location, set the DOCROOT variable: # DOCROOT=/your/docroot/dir ./nagios.SlackBuild For a useful setup, you will want to have nagios-plugins installed. To configure nagios, some knowledge of httpd is required. Check the included 'README.SLACKWARE' file for some basic setup instructions. The include file for httpd is installed as /etc/httpd/extra/nagios.conf Lots of information is available in the included documentation, and even more can be found on the nagios site and wiki .