Hi, I bought a linux server, and actually all I can do now is enter through the SSH, This is my first time buying a server. When I bought a VPS before I could enter through remote desktop control, how can I do that on the server ? I need a little explanation because I am little short on info here 
Most linux servers don't have desktops. I strongly suspect your VPS didn't either -- what a glorious waste of RAM, disk, and CPU that would be in a limited VPS environment!
..hence I think you were logging into some management interface outside your server.