Debian is a Linux release, which is widespread for desktop computers, yet it's been becoming more popular as a server Operating System over the last couple of years too. It's very dependable and safe, since fixes are released within a few days after a problem is discovered. Debian has a large support community, so if you have any kind of questions or troubles with the OS or with any of the 30,000+ packages it includes, you will be able to contact the developers immediately via e-mail using special e-mail lists and receive a response in 15-20 min. The Debian community provides the top level of support possible, as all of your questions will be handled by the same people who made Debian in the first place, so they have a detailed knowledge of how their own system works. Because the Operating System is absolutely free to use and distribute, no license costs will be included with your hosting fees and you'll be able to customize the program code files and any other software that you install without restrictions, to optimize the software environment for your Internet sites. What's more, Debian performs really well on any hardware, as it's light and effective and doesn't require a lot of memory.