CentOS is short for Community Enterprise Operating System. This is one of the top Linux releases for servers and it is well known as one of the most stable and secure Operating Systems available. CentOS is open-source software, which means that you will be able to personalize it in any way you see fit, adding and removing packages or altering the code of any of them. It is also free to distribute and use, so you will not need to pay any license fees, meaning that the total price that you will need to pay for a server running CentOS will be cheaper as compared to the price for a server running another OS. What makes CentOS stand out among various other Linux releases is its huge developer community, that will help you find the answer to any question or problem you may have. Furthermore, each version which is released officially is supported for 10 years, that is is much longer than with any other OS. What this means is regular safety and stability updates which provides a stable software setting for your web apps in the long run.