CentOS is amongst the most preferred Linux-based server Operating Systems out there. It is preferred by countless website hosting providers, since it's very stable, reliable and secure, not to mention that it can be customized freely, since it is an open-source OS. CentOS is used for production servers, as it's also really quick and takes negligible resources. On top of that, you are able to install and run any web application, as long as it can function on a Linux computer system. If you use a CentOS-powered server, you can customize any part of the Operating System according to your requirements. The fact that CentOS is provided for free does mean that you'll need to pay only for your server, and not for any license fees, that will reduce your overall expenses. A large group of developers and users is behind CentOS, and in case you ever experience any problems, or you're simply unsure how to perform a certain task, you will be able to discover a solution very quickly. A significant advantage of the OS is also the fact that every version is officially supported and updated for at least ten years, so you'll always have a secure and dependable software environment.