更改CentOS 6.3 yum源为国内阿里云源

将CentOS的 yum源更换为阿里云源

1、备份

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

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

CentOS 5

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

CentOS 6

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

CentOS 7

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

3、生成缓存

yum makecache

1、先关闭 fastestmirror

vim /etc/yum/pluginconf.d/fastestmirror.conf

设置 enable=0

2、先备份 /etc/yum.repos.d/CentOS-Base.repo

cd /etc/yum.repos.d
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.old

3、进入 http://mirrors.163.com/.help/centos.html 下载 CentOS6-Base-163.repo，放入 /etc/yum.repos.d/ 。

wget -c http://mirrors.163.com/.help/CentOS6-Base-163.repo

4、生成缓存

yum makecache

1、yum search softwarename 查找软件

2、yum list softwarename 列出已装软件

3、yum install softwarename 安装软件

4、yun remove softwarename 卸载软件