安装使用阿里云的yum源

CentOS

1、备份（备份本地Yum源）

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

2、下载新的CentOS-Base.repo 到/etc/yum.repos.d/

CentOS 5

http://mirrors.aliyun.com/repo/Centos-5.repo

CentOS 6

http://mirrors.aliyun.com/repo/Centos-6.repo

CentOS 7

http://mirrors.aliyun.com/repo/Centos-7.repo

[root@localhost yum.repos.d]# cat /etc/redhat-release 
CentOS release 6.7 (Final) 

[root@localhost yum.repos.d]# ls
Centos-6.repo  CentOS-Media.repo.bak

[root@localhost yum.repos.d]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
#添加
　　DNS1=8.8.8.8
　　DNS2=8.8.4.4

3、缓存

[root@localhost yum.repos.d]# yum clean all
...
#清除缓存

[root@localhost yum.repos.d]# yum makecache
...
#生成新的阿里yum源缓存到本地

[root@localhost yum.repos.d]# yum list
...
#列出可用包