Debian is a popular Linux release, which is used primarily on personal computers, still many people have started using it lately as a web server Operating System as well, because of the stability and protection it provides. The latter is a direct result the fact that Debian is developed and supported by a large number of qualified volunteers around the globe, therefore any patch that is necessary to fix a certain issue is released within a couple of days. The very same community can also help with any question or trouble which a user may ever encounter, since they can be contacted through e-mail using mailing lists and a qualified response will be sent in around 15-20 minutes. The advantage here is that all your queries will be responded to by the same people who have created the Operating System itself and they have an in-depth knowledge of how it functions. As Debian is provided for free, you won't have to pay any kind of 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.