CentOS is amongst the most widespread Linux-based server Operating Systems on the market. It's preferred by lots of web hosting suppliers, since it is very stable, reliable and secure, not to mention that it can be customized freely, since it is an open-source Operating System. CentOS is used for production servers, as it's also very fast and takes minimal system resources. In addition, you can set up and run any web app, as long as it can function on a Linux computer system. When you use a CentOS-powered server, you can modify any part of your Operating System in accordance with your specifications. The fact that CentOS is provided for free does mean that you'll need to pay for your server, and not for any sort of license fees, that will minimize your overall expenses. A huge group of developers and users is behind CentOS, so if you ever have any kind of problems, or you are simply not sure how to perform a specific task, you can find a solution right away. A significant advantage of the OS is also the fact that every single version is officially supported and updated for at least ten years, so that you will always have a safe and stable software environment.