sudo yum install yum-changelog
yum changelog httpd
yum install -y epel-release
cd /etc/yum.repos.d && wget https://repo.codeit.guru/codeit.el`rpm -q --qf "%{VERSION}" $(rpm -q --whatprovides redhat-release)`.repo
yum info httpd
yum install httpd
参考：https://blog.csdn.net/weixin_42128364/article/details/84575524