Debian is a preferred Linux release, that is used primarily on desktop machines, but a lot of people have started using it lately as a web server Operating System too, because of the stability and protection it offers. The latter is a direct result the fact that Debian is developed and supported by thousands of qualified volunteers internationally, so that any patch which is required to fix a particular 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, as they can be contacted through e-mail using mailing lists and a competent response will be sent in no more than 15-20 minutes. The advantage here is that your queries will be replied by the same people who have made the Operating System itself and they have a detailed knowledge of how it works. As Debian is absolutely free, you will not have to pay any kind of 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 and the 30.000+ software packages that are readily available for it.