CentOS is an abbreviation for Community Enterprise OS. This is one of the top Linux distributions for servers and it's well known as one of the most stable and secure Operating Systems available. CentOS is open-source software, so you'll be able to customize 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 have to pay any license fees, meaning that the total price that you will have to pay for a server making use of CentOS will be cheaper as compared to the price for a server working with an alternative OS. What makes CentOS stand out among various other Linux releases is its huge developer community, which will help you find the reply to any kind of question or problem you might have. What's more, each version that's released officially is supported for a decade, which is longer than with any other OS. This means regular security and stability updates which will provide a dependable software setting for your web apps in the long run.