Thoughts from the abyss. Groundwork Fruity : A Nagios Configuration Tool. Installing Centreon on Centos 5 - Nagios Wiki. From Nagios Wiki Oreon/Centreon , frontend GUI applications that manages Nagios (similar to Groundwork's Fruity), uses MySQL database to create the /etc/nagios/*.cfg files necessary for the Nagios daemon. [ edit ] Features. Centreon - Revisited Experience Of Nagios - Web Site - Home. Nagios Config v1.3.4.