CentOS 7配置阿里云的yum和epel源

进入yum源配置文件所在路径

cd /etc/yum.repos.d

备份配置文件

mv CentOS-Base.repo CentOS-Base.repo.backup

获取源配置文件

wget http://mirrors.aliyun.com/repo/Centos-7.repo -O /etc/yum.repos.d/CentOS-Base.repo

wget https://mirrors.aliyun.com/repo/epel-7.repo

清理缓存、重新生成

yum clean all && yum makecache

参考文档：

https://developer.aliyun.com/mirror/centos?spm=a2c6h.13651102.0.0.53322f709PDi7s