CentOS is an abbreviation for Community Enterprise Operating System. This is one of the top Linux releases for servers and it is regarded as one of the most reliable and protected Operating Systems out there. CentOS is open-source software, which means that you'll be able to personalize it in whatever 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 will not have to pay any kind of license fees, which means that the overall price that you will have to pay for a server running CentOS will be lower as compared to the price for a server working with an alternative OS. What makes CentOS unique among other Linux distributions is its huge developer community, which will help you discover the reply to any kind of question or problem you have. What's more, each version that is released officially is supported for 10 years, that's is longer than with any other operating system. This means ordinary protection and stability updates which provides a reliable software environment for all of your web applications in the long run.