I should have added some more information after reading the FIG page. I have built & maintained a Nagios 3.x and Cacti 0.8.8b on a CentOS 6.5 system. I'm currently looking at migrating it to CentOS 7, Nagios 4.0.8, & Cacti 0.8.8b. I have also made a developement system with Subversion & Git on CentOS 6.5, it uses Trac 1.1.1 for Issue tracking & TeamCity for the build environment. They used to use Jenkins but switched to Teamcity. I've also set up & maintain servers with Request Tracker, Alfresco Community & Openfire