CentOS is one of the most preferred Linux-based server Operating Systems to choose from. It is preferred by numerous website hosting suppliers, since it is very stable, reliable and secure, not to mention that it can be customized freely, since it's an open-source OS. CentOS is used for production servers, because it's also really quick and takes minimal resources. Also, you are able to install and run any web application, as long as it can run on a Linux equipment. When you use a CentOS-powered server, you're able to modify any part of the Operating System in accordance with your requirements. The fact that CentOS is free also means that you'll have to pay just for your server, but not for any license fees, that will cut down your overall expenses. A vast group of developers and users is behind CentOS, therefore if you ever encounter any kind of problems, or you are simply not sure how to perform a certain task, you will be able to find a solution very quickly. An important advantage of the OS is also the fact that every release is officially supported and updated for no less than ten years, so that you'll always have a secure and reliable software environment.