【转载】Centos7-配置阿里云yum源和epel源

名称	版本
系统	CentOS Linux release 7.6.1810 (Core)

#配置阿里云yum源
yum install -y wget
cd  /etc/yum.repos.d/
mv  CentOS-Base.repo CentOS-Base.repo.bak
wget  http://mirrors.aliyun.com/repo/Centos-7.repo
mv Centos-7.repo CentOS-Base.repo
#配置epel源
wget https://mirrors.aliyun.com/repo/epel-7.repo
#清除缓存并更新
yum clean all
yum makecache
yum update

转载自：https://www.jianshu.com/p/4c05fb9843bf