vim /etc/yum.repos.d/epel.repo
1 [epel]
2 name=Extra Packages for Enterprise Linux 7 - $basearch
3 #baseurl=http://download.fedoraproject.org/pub/epel/7/$basearch
4 metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch
取消第三行注释，并注释第四行
1 [epel]
2 name=Extra Packages for Enterprise Linux 7 - $basearch
3 baseurl=http://download.fedoraproject.org/pub/epel/7/$basearch
4 #metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch