CentOS is short for Community Enterprise OS. This is one of the best Linux releases for servers and it is recognized as one of the most dependable and protected Operating Systems available. CentOS is open-source software, so you can personalize it in any way you see fit, adding and removing packages or altering the program code of all of them. It is also free to distribute and use, so you won't need to pay any license fees, meaning that the total price that you will need to pay for a server making use of CentOS will be much lower than the price for a server running an alternative OS. What makes CentOS stand out among other Linux distributions is its huge developer community, which will help you get the answer to any kind of question or problem you might have. Furthermore, each version that's released officially is supported for ten years, which is much longer than with any other OS. This means routine security and stability updates which will provide a great software environment for all of your web applications in the long run.