CentOS is among the most sought after Linux-based server Operating Systems out there. It is used by various website hosting providers, as it's very stable, reliable and secure, not to mention that it is freely customizable, since it is an open-source Operating System. CentOS is used for production servers, as it's also very quick and takes negligible resources. On top of that, you're able to install and run any kind of web app, provided that it can function on a Linux equipment. If you use a CentOS-powered server, you'll be able to adjust any part of your Operating System according to your preferences. The fact that CentOS is free does mean that you will need to pay just for your server, but not for any kind of license fees, that will cut down your overall expenses. A large community of developers and users stands behind CentOS, therefore in case you ever encounter any problems, or you're simply unsure how to perform a particular task, you'll be able to find a solution right away. A significant benefit of the OS is also the fact that every version is officially supported and updated for at least ten years, so that you'll always have a safe and stable software environment.