CentOS is one of the preferred Operating Systems for hosting servers. It is one of the numerous Linux releases available, yet what differentiates it from all the others is the long-term support, which guarantees that you will always have a reliable and protected OS. Each CentOS version that is released is supported for ten years, which is longer than with almost every other OS out there. CentOS also has a much more numerous developer community than other distributions, so in the event you encounter any problem or have any questions, you're able to quickly find the data that you need. CentOS is widely known as one of the best server Operating Systems, as it's very stable and protected, that makes it very reliable even when you host sensitive information. Since it is open-source, you can modify any part of it and customize it according to your needs, not to mention that the overall cost for a CentOS-based server will be lower, because you won't need to pay license fees of any sort.