I am looking for 64-bit server operating system and I am considering Ubuntu server edition. I know Ubuntu is a great Desktop operating system, but can anyone tell me how their server platform? Ubuntu is based on Debian so I guess it has the same speed as Debian.
IMHO opt Debian OS over Ubuntu. Although Debian is more popular between web developers and most probably prefered for gaming servers. I would like to stay with Debian due its stability. On the other hand if you do a default install of both you'll experience Ubuntu is much faster due to less services selected at boot time on a default install. However, in a reality it is hard to figured out difference between both.
I've used Ubuntu server edition in past and according to my experience Ubuntu server edition is the server version, which rely only on command line, and includes server particular packages in place of desktop components.
On the other hand Linux is different than Windows in that there are not various levels of functionality between the desktop and server edition. Alternatively each list is just a starting point.
You can opt Ubuntu server edition, but then you need to install the desktop on the top of it by installing the Ubuntu desktop package. Once you install the desktop version you'll still have to access different server packages from the repositories.