Debian is an Operating System that uses the Linux kernel. Although it is usually set up on desktop computers, it's being used on an increasing number of web servers as well. The reason is that it's really stable, so a server running it will not need to be restarted for months. Debian is also regarded as being among the most protected Operating Systems to choose from, because security patches are released within days after an issue is discovered. This is possible since thousands of well-trained developers work for the Debian project on a voluntary basis and not only do they work on the OS itself, in addition, they provide 24/7 support via special mailing lists and respond within twenty minutes to any question. In this light, you will receive top-notch support directly from the developers who know their own platform in depth, and not from a third-party support team. Debian is also one of the Linux releases with the highest number of packages - more than 30,000. As the Operating System is absolutely free to use, you are able to modify both the core and any of the packages in any way you see fit. Furthermore, you will not have to pay any kind of license fees.