CentOS is one of the most preferred Linux-based server Operating Systems out there. It is used by lots of website hosting service providers, because it's very stable, reliable and secure, not to mention that it is freely customizable, because it is an open-source Operating System. CentOS is used for production servers, as it's also really quick and takes negligible system resources. Furthermore, you are able to set up and run any web application, as long as it can function on a Linux computer system. If you use a CentOS-powered server, you're able to edit any part of the Operating System in accordance with your preferences. The fact that CentOS is absolutely free means that you will have to pay just for your server, but not for any sort of license fees, that will lower your overall expenses. A huge community of developers and users stands behind CentOS, so in case you ever encounter any problems, or you are simply unsure how to perform a particular task, you will be able to find a solution very quickly. An important advantage of the OS is also the fact that each release is officially supported and updated for at least ten years, which means that you'll always have a safe and reliable software environment.