Fourthly, you do not need a GPU to run the dedicated server. Thirdly, once you have the Civ5 server running I think you can exit Steam on the dedicated box. Secondly you might need to launch CIV from within Steam and set the Options>Multiplayer>SMTP settings if you want notifications (but exit once you have set them).
Firstly you'll need to open or forward a whole bunch of ports, either in your cloud set up or on your router, see below. TitleOriginal releaseSource code found or lea.
\Sid Meier's Civilization V SDK\Dedicated Server run CivilizationV_Server (if you run it from the actual Civ5 folder it will run but won't connect!) Pdf SDK allows you to split and merge PDF documents in just a few lines of. \Sid Meier's Civilization V SDK\Dedicated Server