I have broken down and added a Linux category now. Since I know so much about it I figured its about time. Anyways, interesting article that goes over several apps to use to manage a linux Ubuntu server. Most of the apps are “pay for” ones. But they give you ideas for what could be out there for free ones. My 2 cents. Any linux servers I setup are A) VM’s B) Don’t have much diskspace, and C) don’t have a GUI. 🙂
http://www.makeuseof.com/tag/amahi-on-ubuntu-must-have-extras-for-your-linux-home-server/