In this tutorial, we will learn how to install and configure Plex Media Server on Ubuntu 16.04. Requirements. A server running Ubuntu 16.04. A not-root user with sudo. I have tried to get this answered without success, so I’ll try here. I have a Roku 3 and PLEX media server connected via CAT5. Playing 480p MKV movies is very difficult because of interruptions (transcoding) I think. Now the MKV files…