CentOS is an abbreviation for Community Enterprise Operating System. This is one of the leading Linux releases for servers and it's regarded as one of the most stable and protected Operating Systems out there. CentOS is open-source software, which means that you are able to personalize it in any way you see fit, adding and removing packages or changing the program code of any of them. It's also free to distribute and use, so you won't need to pay any license fees, which means that the overall price that you will need to pay for a server running CentOS will be more affordable as compared to the price for a server working with another OS. What makes CentOS unique among other Linux releases is its huge developer community, which will help you find the answer to any kind of question or problem you might have. Furthermore, each version that is released officially is supported for ten years, that's is longer than with any other operating system. This means regular safety and stability updates which will provide a dependable software setting for your web applications in the long run.