CentOS is an abbreviation for Community Enterprise OS. This is one of the leading Linux distributions for servers and it's well known as one of the most dependable and risk-free Operating Systems available. 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 any 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 overall price that you'll have to pay for a server making use of CentOS will be cheaper than the price for a server working with an alternative OS. What makes CentOS unique among various other Linux distributions is its huge developer community, which will help you discover the reply to any question or problem you might have. Furthermore, each version which is released officially is supported for 10 years, that is is much longer than with any other operating system. What this means is frequent safety and stability updates that will provide a great software environment for all your web apps in the long run.