CentOS is amongst the most widespread Linux-based server Operating Systems today. It's preferred by a number of website hosting service providers, since it is very stable, secure and reliable, not to mention that it is freely customizable, since it's an open-source OS. CentOS is used for production servers, because it is also very fast and takes negligible resources. What's more, you're able to set up and run any web app, as long as it can operate on a Linux computer system. When you use a CentOS-powered server, you are able to edit any part of the Operating System according to your needs. The fact that CentOS is free does mean that you'll need to pay only for your server, and not for any sort of license fees, that will minimize your overall expenses. A huge team of developers and users is behind CentOS, so that in case you ever have any kind of problems, or you are simply not sure how to perform a particular task, you'll be able to find a solution quickly. A significant benefit of the OS is also the fact that every release is officially supported and updated for at least ten years, so you'll always have a safe and dependable software environment.