Debian is a Linux release, that's 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 safe, because fixes are released in just a couple of days after an issue 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 includes, you will be able to contact the developers without delay via email using special e-mail lists and receive a response within 15-20 min. The Debian community offers the top level of support possible, because your questions will be handled by exactly the same people that built Debian in the first place, so they have an in-depth knowledge of how their system functions. Because the Operating System is absolutely free to use and distribute, no license charges will be included with your web hosting fees and you'll be able to customize the program code files and any other software which you install with no restrictions, in order to optimize the software environment for your sites. Furthermore, Debian performs really well on any hardware, because it's light and effective and does not require a lot of memory.