CentOS is short for Community Enterprise OS. This is one of the top Linux releases for servers and it is well known as being one of the most stable and secure Operating Systems available. CentOS is open-source software, so you're able to personalize it in any way you see fit, adding and removing packages or changing 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, which means that the total price that you will have to pay for a server running CentOS will be lower than the price for a server working with some other OS. What makes CentOS stand out among other Linux releases is its huge developer community, which will help you find the reply to any question or problem you have. What's even more, each version that is released officially is supported for a decade, that is is a lot longer than with any other OS. This means frequent security and stability updates that will provide a great software setting for all your web applications in the long run.