Debian is a popular Linux release, that is used primarily on desktop machines, but numerous 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 consequence of the fact that Debian is developed and supported by countless qualified volunteers worldwide, therefore any patch which is needed to fix a certain issue is released within a few days. The same community can also help with any question or problem which a user may ever have, due to the fact that they can be contacted through electronic mail using mailing lists and a qualified response will be sent in no more than 15-20 min. The advantage here is that all your queries will be responded to by the same people who have designed 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 will be able to personalize it as much as you want or need. This is valid for the Operating System and the 30.000+ software packages which are readily available for it.