Debian is an Operating System which uses the Linux kernel. Even though it is usually set up on desktops, it is being used on a growing number of web servers as well. The reason is that it is really stable, so a server running it will not have to be restarted for months. Debian is also considered to be one of the most safe Operating Systems nowadays, because security patches are released within days after an issue is discovered. This is possible since thousands of experienced developers are part of the Debian project on a voluntary basis and not only do they work on the OS itself, but they also provide 24/7 support by using special mailing lists and reply in twenty minutes to any kind of question. In this light, you will enjoy 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 among the Linux releases with the highest number of packages - over 30,000. As the Operating System is absolutely free to use, you'll be able to modify both the core and all of the packages in the way you see fit. Furthermore, you will not be required to pay any license fees.