CentOS is an abbreviation for Community Enterprise Operating System. This is one of the leading Linux releases for servers and it's well known as being one of the most reliable and protected Operating Systems out there. CentOS is open-source software, so you are able to personalize it in any way you see fit, adding and removing packages or updating the program code of all of them. It is also free to distribute and use, so you won't need to pay any license fees, meaning that the overall price that you will need to pay for a server running CentOS will be more affordable than the price for a server working with some other OS. What makes CentOS stand out among other Linux distributions is its huge developer society, which will help you get the answer to any kind of question or problem you may have. What's more, each version that is released officially is supported for ten years, that's is much longer than with any alternative operating system. What this means is ordinary safety and stability updates that provides a reliable software setting for all of your web applications in the long run.