LNMP1.9、2.0、2.2版本PHP安装失败，提示镜像源错误

ht131

failure: repodata/repomd.xml from epel: [Errno 256] No more mirrors to try.
http://mirrors.ustc.edu.cn/epel/7/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
http://mirrors.ustc.edu.cn/epel/7/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
To address this issue please refer to the below wiki article