CentOS is short for Community Enterprise Operating System. This is one of the leading Linux distributions for servers and it's recognized as being one of the most reliable and secure Operating Systems on the market. CentOS is open-source software, so you can personalize it in whatever way you see fit, adding and removing packages or changing the program code of all of them. It's also free to distribute and use, so you won't need to pay any kind of license fees, meaning that the total price that you will need to pay for a server making use of CentOS will be more affordable than the price for a server working with another OS. What makes CentOS stand out among various other Linux distributions is its huge developer community, that will help you get the answer to any question or problem you have. What's even more, each version which is released officially is supported for 10 years, that is is longer than with any other operating system. What this means is routine protection and stability updates that will provide a dependable software environment for all of your web applications in the long run.