I'm running an own Avorion server @ Ubuntu 16.04 LTS since this afternoon. It's running fine so far. My server machine is only a: i3-4160 Dual-Core @ 3,6 GHz and 8GB RAM (used for now for single player only, may become a small co-op server later if I get friends into this game :-))
Installation was done in a handfull of minutes, just had to verify the AppID 565060 as the one which stands for the Avorion dedicated server, as this wasn't exactly clear to me at first. I already had some experience by setting up an own 7DTD dedicated server on the same machine, but the installation of Avorion dedicated server is really easy with SteamCMD.
What I'm still missing is the place where the settings for the server are stored like: seed, used ports, and so on ...
Any advice?