CentOS is one of the most popular Linux-based server Operating Systems to choose from. It is used by countless website hosting service providers, because it is very stable, reliable and secure, not to mention that it is freely customizable, since it is an open-source OS. CentOS is used for production servers, because it is also very quick and takes minimal system resources. What's more, you are able to install and run any web app, provided that it can function on a Linux device. If you use a CentOS-powered server, you are able to modify any part of the Operating System in accordance with your needs. The fact that CentOS is absolutely free means that you will need to pay just for your server, and not for any license fees, that will lower your overall expenses. A large community of developers and users is behind CentOS, and if you ever have any kind of problems, or you're simply unsure how to perform a specific task, you will be able to discover a solution right away. A significant advantage of the OS is also the fact that each and every version is officially supported and updated for no less than 10 years, which means that you will always have a secure and reliable software environment.