CentOS is an abbreviation for Community Enterprise Operating System. This is one of the best Linux releases for servers and it is well known as being one of the most reliable and risk-free Operating Systems on the market. CentOS is open-source software, which means that you will be able to personalize it in whatever way you see fit, adding and removing packages or modifying the program code of any of them. It is also free to distribute and use, so you will not need to pay any kind of license fees, meaning that the total price that you'll have to pay for a server making use of CentOS will be much lower than the price for a server working with some other OS. What makes CentOS unique among other Linux distributions is its huge developer society, which will help you discover the reply to any kind of question or problem you may have. Furthermore, each version which is released officially is supported for a decade, that's is a lot longer than with any other operating system. This means frequent protection and stability updates that provides a great software setting for your web apps in the long run.