打开网页：http://mirrors.aliyun.com/
从“
文件列表
”找到自己的系统：
| Mirror | Last update | Help |
|---|---|---|
| CPAN | 2015-07-15 15:36:50 | |
| CRAN | 2015-07-16 05:11:52 | |
| CTAN | 2015-07-12 03:51:20 | |
| apache | 2015-07-16 02:06:40 | |
| archlinux | 2015-07-16 00:51:24 | help |
| centos | 2015-07-16 06:20:51 | help |
| cygwin | 2015-07-16 02:00:05 | help |
| debian | 2015-07-16 08:07:31 | help |
| debian-backports | 2015-07-16 08:50:04 | help |
| debian-cd | 2015-07-15 01:05:05 | |
| debian-security | 2015-07-16 08:30:55 | help |
| deepin | 2015-07-16 03:00:06 | help |
| dotdeb | 2015-07-16 01:52:20 | help |
| epel | 2015-07-16 07:18:55 | help |
| fedora | 2015-07-15 02:24:48 | help |
| freebsd | 2015-07-16 03:44:27 | help |
| gentoo | 2015-07-14 00:42:09 | help |
| gentoo-portage | 2015-07-16 04:04:06 | help |
| gentoo-portage-prefix | 2015-01-28 06:09:50 | |
| kali | 2015-06-26 03:50:35 | |
| kali-security | 2015-06-26 02:22:01 | |
| linux-kernel | 2015-07-16 04:06:53 | |
| macports | 2015-07-15 03:02:24 | |
| mariadb | 2015-07-15 15:32:35 | |
| mongodb | 2015-07-16 02:35:57 | |
| oldubuntu-releases | 2015-07-16 02:30:08 | |
| opensuse | 2015-07-15 13:29:03 | help |
| packman | 2015-06-03 02:26:11 | help |
| pypi | 2015-07-16 02:49:37 | help |
| raspbian | 2015-07-15 02:59:32 | help |
| rpmfusion | 2015-07-16 07:22:45 | |
| rubygems | 2015-07-15 03:08:28 | help |
| sabayonlinux | 2015-07-14 01:04:50 | |
| scientificlinux | 2015-07-15 12:20:55 | help |
| ubuntu | 2015-07-16 07:00:23 | help |
| ubuntu-releases | 2015-07-16 02:24:21 | |
| zabbix | 2015-07-16 02:40:05 |
单击help进入(如我这里当今centos 的help)：
CentOS
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、之后运行yum makecache生成缓存
根据上述的描述操作即可快速完成yum源更换。