CentOS is an abbreviation for Community Enterprise Operating System. This is one of the top Linux releases for servers and it's recognized as one of the most dependable and risk-free Operating Systems available. CentOS is open-source software, which means that you're able to customize it in any way you see fit, adding and removing packages or modifying the code of any of them. It is also free to distribute and use, so you will not have to pay any kind of license fees, meaning that the overall price that you'll have to pay for a server making use of CentOS will be cheaper than the price for a server working with some other OS. What makes CentOS unique among other Linux distributions is its huge developer community, that will help you get the answer to any kind of question or problem you have. In addition, each version that's released officially is supported for 10 years, which is longer than with any alternative operating system. What this means is frequent security and stability updates which provides a dependable software setting for your web apps in the long run.