centos更换阿里云源

增加dns解析

 vi /etc/sysconfig/network-scripts/ifcfg-eth0

在末尾增加 

DNS1=8.8.8.8
DNS2=8.8.4.4

重启network

service network restart

 

 

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

centos7

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

或

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

添加EPEL

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

yum clean all

yum makecache