[ubuntu] Ubuntu Home Server Project Help

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http://ubuntuforums.org – Hi All, I've finally got round to starting a project I've wanted to do for a while, building my own home server and rather than using Windows Home Server I thought I'd give Linux a try. My experience with Ubuntu (or any other Linux OS) is nigh on non-existent but thought I'd jump in at the deep end; what I'm looking for my home server to do is; 1) Store key data (both media and non-media) in 1 place and allow access to this data from across my home network. 2) Serve the media stored to the various DLNA devices I have (xbox, Smart TV etc) 3) Automatically back-up the PCs on the network. Som (Hardware)