Combined Frontend/Backend, want to add External Frontend

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http://ubuntuforums.org – Currently, I am running a mythbuntu combined frontend and backend system. The version is 12.04.1 LTS. The desktop is kfce 4.8. The PC is an AMD 64 X2 4400. The mobo is Asus A8V with 2 gigs of RAM. The second frontend will be an XBMC, which is already running. All devices are on the same network. I am not sure what I need to do to externally access the backend from the xbmc or even if I were to add a dedicated mythtv frontend. I changed the ip address in the backend setup to the ip address as opposed to localhost or, and did the same in the my.cnf file for the bind-address. But th (Hardware)