CentOS is among the most sought after Linux-based server Operating Systems available on the market. It is used by lots of web hosting suppliers, since it's very stable, secure and reliable, not to mention that it can be customized freely, since it is an open-source OS. CentOS is used for production servers, because it is also very quick and takes negligible resources. What's more, you can set up and run any kind of web app, provided that it can function on a Linux machine. If you use a CentOS-powered server, you'll be able to change any part of the Operating System in accordance with your specifications. The fact that CentOS is free does mean that you'll have to pay only for your server, but not for any sort of license fees, that will minimize your overall expenses. A large team of developers and users is behind CentOS, so if you ever have any kind of problems, or you're simply not sure how to perform a particular task, you will be able to find a solution right away. A significant benefit of the OS is also the fact that each release is officially supported and updated for a minimum of ten years, so that you will always have a secure and stable software environment.