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 one of the most stable and risk-free Operating Systems out there. CentOS is open-source software, so you're able to customize it in any way you see fit, adding and removing packages or updating the program code of all of them. It's also free to distribute and use, so you won't have to pay any kind of license fees, which means that the total price that you will need to pay for a server making use of CentOS will be lower than the price for a server running an alternative OS. What makes CentOS stand out among other Linux releases is its huge developer community, which will help you get the reply to any question or problem you might have. What's even more, each version that's released officially is supported for 10 years, that's is much longer than with any other operating system. What this means is routine protection and stability updates that will provide a stable software setting for all of your web applications in the long run.