CentOS 7配置阿里云镜像源及其加速

备份原yum源的配置：mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

下载Centos-7.repo文件curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

清除及生成缓存

# 清除yum缓存
yum clean all
# 缓存阿里云源
yum makecache
# 列出
yum list

阿里云镜像加速配置地址：容器镜像服务 (aliyun.com)