Debian is a Linux release, that is widespread for desktop computers, however it's been becoming more popular as a server OS over the last few years too. It is really stable and safe, since fixes are released within a couple of days after an issue is discovered. Debian has a large support community, so when you have any kind of questions or problems with the OS or with any of the 30,000+ packages it comes with, you are able to contact the developers right away via email using special mailing lists and receive a response in just 15-20 minutes. The Debian community gives you the best level of support possible, because your questions will be handled by the very same people that created Debian in the first place, so they have an in-depth knowledge of how their system operates. Since the Operating System is free to use and distribute, no license costs will be added to your website hosting fees and you can change the program code files and any other software which you install without restrictions, so as to optimize the software environment for your Internet sites. Furthermore, Debian performs very well on any hardware, because it is light and quick and doesn't require a lot of memory.