阿里源centos yum epel

1.安装base reop源

cd /etc/yum .repos.d

接着备份旧的配置文件

sudo mv CentOS-Base .repo CentOS-Base .repo.bak

下载阿里源的文件

sudo wget -O CentOS-Base .repo http://mirrors.aliyun.com/repo/Centos-7.repo

2 安装epel repo源：

epel(RHEL 7)

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

epel(RHEL 6)

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

epel(RHEL 5)

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

3.清理缓存

yum clean all

4.重新生成缓存

yum makecache