[TOC] ### **国内源** 如果连接centos官方的基础yum源网络不好，可以配置国内的基础yum源（是centos官网yum源在国内的副本）。我们经常使用到的有中科大、网易云和阿里云的镜像源。这里，我们配置阿里云的基础yum源，新建文件 `/etc/yum.repos.d/aliyun-base.repo`，内容如下： ``` [aliyun-base] name=aliyun-base baseurl=https://mirrors.aliyun.com/centos/$releasever/os/$basearch/ gpgcheck=0 enabled=1 [aliyun-updates] name=aliyun-updates baseurl=https://mirrors.aliyun.com/centos/$releasever/updates/$basearch/ gpgcheck=0 enabled=1 [aliyun-extras] name=aliyun-extras baseurl=https://mirrors.aliyun.com/centos/$releasever/extras/$basearch/ gpgcheck=0 enabled=1 ``` ### **CentOS官方源** 当我们装好centos系统后，默认都设置好了centos官方的基础yum源。该文件在` /etc/yum.repos.d/` 目录下，文件名叫 `CentOS-Base.repo`。如果在目录下没有发现该文件，则创建，并用如下内容覆盖，这样我们就设置好了centos官方的基础yum源 ``` [base] name=CentOS-$releasever - Base #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #released updates [updates] name=CentOS-$releasever - Updates #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 ```