Help getting access to my PS server

Hey, so i have had DH for a while now, using it for a podcast site i was going to start but never did. So it’s just sitting here empty. I started playing minecraft and wanted to host a server. I read about the VPS Dreamhost PS freature that runs debian. I read a forum thread on here about a guy hosting a valve source server and i thought “Minecraft will be perfect”

So i got the free week (if this works ill be keeping it for sure) but im stuck. I have no idea how to get into the server itself. Can i RD to it? I just need to install some small .jar files and have them run.

Im familiar with linux, but i have NO idea where to go from here.