CentOS is short for Community Enterprise OS. This is one of the leading Linux distributions for servers and it is regarded as being one of the most stable and secure Operating Systems available. CentOS is open-source software, so you will be able to personalize it in any way you see fit, adding and removing packages or altering the program code of any of them. It is also free to distribute and use, so you won't have to pay any kind of license fees, meaning that the overall price that you will need to pay for a server making use of CentOS will be more affordable as compared to the price for a server running some other OS. What makes CentOS unique among various other Linux releases is its huge developer community, that will help you get the reply to any question or problem you have. What's more, each version that is released officially is supported for ten years, that is is longer than with any other operating system. What this means is routine safety and stability updates which provides a dependable software environment for your web applications in the long run.