RHEL/CentOS 下安装yum源地址汇集---不定期更新

启用EPEL6 yum源：

1、RHEL/CentOS/SL Linux 6.x 下安装 EPEL6 yum源：

32位系统选择：
rpm -ivh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

64位系统选择：


yum install -y https://mirrors.tuna.tsinghua.edu.cn/epel/epel-release-latest-6.noarch.rpm 

导入key：
rpm --import  /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

2、RHEL/CentOS/SL Linux 7.x 下安装 EPEL7 yum源：

http://download.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-6.noarch.rpm

http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

3、阿里云yum

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

CentOS 6

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

CentOS 7

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

3、之后运行yum makecache生成缓存