Debian is an Operating System which uses the Linux kernel. Even though it is usually set up on personal computers, it's being used on a growing number of web servers as well. The reason is that it is very stable, so a server running it won't need to be restarted for months. Debian is also regarded as being one of the most safe Operating Systems in existence, as security patches are released within days after an issue is discovered. This is possible because thousands of well-trained developers are employed by the Debian project on a voluntary basis and not only do they work on the OS itself, in addition, they provide 24/7 support by using special mailing lists and respond within 20 minutes to any kind of question. Thus, you will enjoy top-level support directly from the developers who know their own platform in detail, and not from a third-party support team. Debian is also among the Linux releases with the highest number of packages - more than 30,000. Since the Operating System is completely free to use, you will be able to modify both the core and any of the packages in any way you see fit. Also, you will not be required to pay any kind of license fees.
