https://blog.wongcw.com/2021/01/27/centos%e9%a0%85%e7%9b%ae%e7%82%ba%e4%bd%95%e5%81%9c%e6%ad%a2%ef%bc%9f%e8%91%a3%e4%ba%8b%e6%9c%83%e4%b8%8d%e8%83%bd%e6%b1%ba%e5%ae%9ared-hat%e5%9c%98%e9%9a%8a%e7%9a%84%e5%b7%a5%e4%bd%9c/