Debian is a Linux distribution, that is widely used for desktop computers, yet it's been gaining popularity as a server Operating System during the last few years as well. It is very dependable and secure, due to the fact that fixes are released in a couple of days after a problem is discovered. Debian has a huge support community, so if you have any kind of questions or troubles with the OS or with some of the 30,000+ packages it comes with, you will be able to contact the developers right away through electronic mail using special mailing lists and receive a reply in 15-20 minutes. The Debian community provides the best level of support possible, as your questions will be handled by the very same people who built Debian in the first place, so they have a thorough knowledge of how their own system works. Since the Operating System is absolutely free to use and distribute, no license charges will be added to your web hosting fees and you can modify the program code files and any other software that you install without restrictions, so as to optimize the software environment for your web sites. Furthermore, Debian performs very well on any kind of hardware, as it's light and effective and does not need a lot of memory.