You may be asking yourself this very question. I will do my best to describe this to you. You may not need all of the software listed, but this is all of the software that is covered on this site, some of which, is not included with the operating system. Depending on what you want your server to do, you may not need all the software. I will describe each program and why you would need it based on what you want to do with your server. Choose the software to the left for more information.