CentOS is an abbreviation for Community Enterprise Operating System. This is one of the best Linux releases for servers and it's regarded as one of the most stable and safe Operating Systems on the market. CentOS is open-source software, so you're able to personalize it in whatever way you see fit, adding and removing packages or altering the program code of all of them. It's also free to distribute and use, so you will not need to pay any kind of license fees, which means that the total price that you'll need to pay for a server running CentOS will be much lower as compared to the price for a server running some other OS. What makes CentOS stand out among various other Linux distributions is its huge developer community, that will help you find the answer to any kind of question or problem you have. What's more, each version that is released officially is supported for a decade, that's is much longer than with any alternative operating system. What this means is regular safety and stability updates that will provide a stable software setting for your web applications in the long run.