CentOS 7 yum源 /etc/yum.repos.d/base.repo

[base]
name=base
baseurl=https://mirrors.aliyun.com/centos/$releasever/os/$basearch
https://mirrors.cloud.tencent.com/centos/$releasever/os/$basearch
https://mirrors.tuna.tsinghua.edu.cn/centos$releasever/os/$basearch
gpgcheck=0

[epel]
name=epel
baseurl=http://mirrors.aliyun.com/epel/$releasever/$basearch
https://mirrors.tuna.tsinghua.edu.cn/epel/$releasever/$basearch
gpgcheck=0