Debian is a preferred Linux distribution, which is used mainly on personal computers, still many people have begun using it lately as a web server Operating System as well, due to the stability and security it supplies. The latter is a result of the fact that Debian is developed and supported by numerous qualified volunteers all around the world, therefore any patch which is necessary to fix a particular issue is released in a few days. The same community will also help with any question or trouble which a user may ever experience, since they can be contacted through electronic mail using e-mail lists and a qualified response will be sent in no more than 15-20 min. The advantage here is that your questions will be responded to by the same people who have made the Operating System itself and they have an in-depth knowledge of how it functions. As Debian is provided for free, you will not have to pay any license fees to use it and you'll be able to personalize it as much as you want or need. This is valid for the Operating System as well as the 30.000+ software packages that are readily available for it.