I'm really new to the whole Ubuntu thing, I've been and still am a windows user, for my windows server I would just use RDC (remote desktop connection) and be done with it, as in apps are still running when I close RDC.
For Ubuntu I've been using SSH but as soon as I close it anything I've started ends. Also while I prefer a GUI it seems that most stuff in the Ubuntu is terminal based and I'm ok learning this.
I'm currently running the standard version of Ubuntu 16.04 LTS