CentOS is one of the preferred Operating Systems for hosting servers. It is one of the countless Linux releases available, however what differentiates it from all the rest is the long-term support, which guarantees that you will always have a dependable and safe Operating System. Every CentOS version that is released is supported for ten years, which is much longer than with another OS available on the market. CentOS also has a much larger developer community than other distributions, so in case you encounter any problem or have some questions, you can quickly get the info which you need. CentOS is considered to be one of the best server Operating Systems, because it's very stable and protected, that makes it very reliable even if you host confidential info. Since it is open-source, you're able to modify any part of it and customize it according to your needs, not to mention that the total cost for a CentOS-based server will be lower, as you will not have to pay license fees of any sort.