CentOS is one of the preferred Operating Systems for web hosting servers. It's one of the many Linux releases available, however what differentiates it from all of the others is its long-term support, which guarantees that you will always have a stable and safe OS. Each CentOS version that is released is supported for 10 years, which is a lot longer than with another OS on the market. CentOS also has a much larger developer community than other distributions, so if you encounter any kind of problem or have some questions, you are able to quickly get the information that you need. CentOS is widely known as among the best server Operating Systems, due to the fact that it is very stable and protected, that makes it really reliable even when you host confidential info. Since it is open-source, you can modify any part of it and personalize it according to your needs, not to mention that the overall cost for a CentOS-based server will be lower, because you will not need to pay license fees of any type.