Debian is a widespread Linux release, that is used primarily on desktop machines, however a lot of people have begun using it lately as a web server OS too, because of the stability and security it provides. The latter is a consequence of the fact that Debian is developed and supported by numerous qualified volunteers worldwide, therefore any patch that is necessary to fix a certain issue is released in a matter of days. The same community can also help with any question or problem which a user may ever have, since they can be contacted through email using mailing lists and a competent response will be sent in no more than 15-20 min. The advantage here is that all your queries will be answered by the same people who have designed the Operating System itself and they have an in-depth knowledge of how it works. As Debian is free, you will not have to pay any kind of license fees to use it and you can customize it as much as you want or need. This is valid for both the Operating System as well as the 30.000+ software packages which are readily available for it.
