CentOS is one of the most widely used Linux-based server Operating Systems today. It is used by numerous web hosting service providers, because it's very stable, reliable and secure, not to mention that it can be customized freely, because it's an open-source Operating System. CentOS is used for production servers, because it is also very quick and takes negligible system resources. In addition, you will be able to set up and run any kind of web app, as long as it can operate on a Linux machine. When you use a CentOS-powered server, you'll be able to change any part of the Operating System in accordance with your specifications. The fact that CentOS is provided for free also means that you'll need to pay just for your server, and not for any kind of license fees, which will decrease your overall expenses. A large group of developers and users stands behind CentOS, and in case you ever have any problems, or you're simply not sure how to perform a specific task, you'll be able to discover a solution very quickly. An important advantage of the OS is also the fact that each release is officially supported and updated for a minimum of ten years, which means that you will always have a safe and stable software environment.