CentOS is an abbreviation for Community Enterprise OS. This is one of the best Linux distributions for servers and it's recognized as being one of the most reliable and secure Operating Systems on the market. CentOS is open-source software, so you'll be able to personalize it in whatever way you see fit, adding and removing packages or changing the code of any of them. It is also free to distribute and use, so you won't have to pay any license fees, which means that the overall price that you will have to pay for a server making use of CentOS will be much lower than the price for a server running another OS. What makes CentOS stand out among various other Linux releases is its huge developer society, which will help you discover 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, which is longer than with any alternative OS. What this means is routine safety and stability updates which provides a stable software environment for all of your web apps in the long run.