添加CentOS--yum源，其他镜像源

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本文详细介绍了如何将CentOS系统的默认YUM源更改为阿里云镜像站，包括备份原配置、下载阿里云配置文件、生成缓存及安装Webtatic YUM源的步骤。

修改CentOS默认yum源为mirrors.aliyun.com
1、首先备份系统自带yum源配置文件/etc/yum.repos.d/CentOS-Base.repo

[root@localhost ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

2、下载ailiyun的yum源配置文件到/etc/yum.repos.d/
CentOS7

[root@localhost ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

CentOS6

[root@localhost ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

CentOS5

[root@localhost ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

3、运行yum makecache生成缓存

[root@localhost ~]# yum makecache

4、这时候再更新系统就会看到以下mirrors.aliyun.com信息

[root@localhost ~]# yum -y update

已加载插件：fastestmirror, refresh-packagekit, security
设置更新进程Loading mirror speeds from cached hostfile
base: mirrors.aliyun.com
extras: mirrors.aliyun.com
updates: mirrors.aliyun.com

安装Webtatic yum源

Webtatic EL7 for CentOS/RHEL 7:

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

Webtatic EL6 for CentOS/RHEL 6:

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm

or:

yum -y install epel-release

可以直接安装对应的epel源

yum repolist    #可以查看源仓库的信息