在 CentOS 7 上配置中国源

在 CentOS 7 上配置中国源（镜像）来加快软件包下载速度的步骤：

更改 CentOS 7 的镜像源为中国镜像

备份原始的仓库配置

在修改之前，建议备份当前的仓库配置文件：

bash 复制代码

sudo cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

编辑仓库配置

打开仓库配置文件进行编辑：

bash 复制代码

sudo vi /etc/yum.repos.d/CentOS-Base.repo

将文件内容替换为以下中国镜像的配置：

阿里云 (Aliyun)

ini 复制代码

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/repodata/repomd.xml.key

[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/repodata/repomd.xml.key

[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/repodata/repomd.xml.key

163 镜像 (163.com)

ini 复制代码

[base]
name=CentOS-$releasever - Base - mirrors.163.com
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/$releasever/updates/$basearch/repodata/repomd.xml.key

[updates]
name=CentOS-$releasever - Updates - mirrors.163.com
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/$releasever/updates/$basearch/repodata/repomd.xml.key

[extras]
name=CentOS-$releasever - Extras - mirrors.163.com
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/$releasever/extras/$basearch/repodata/repomd.xml.key

清华大学镜像 (Tsinghua University)

ini 复制代码

[base]
name=CentOS-$releasever - Base - mirrors.tuna.tsinghua.edu.cn
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/updates/$basearch/repodata/repomd.xml.key

[updates]
name=CentOS-$releasever - Updates - mirrors.tuna.tsinghua.edu.cn
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/updates/$basearch/repodata/repomd.xml.key

[extras]
name=CentOS-$releasever - Extras - mirrors.tuna.tsinghua.edu.cn
baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/extras/$basearch/repodata/repomd.xml.key

保存并关闭文件。

清除 YUM 缓存

清除 YUM 缓存，以确保使用更新后的仓库配置：

bash 复制代码

sudo yum clean all

更新 YUM 仓库

更新仓库元数据：

bash 复制代码

sudo yum makecache

验证新的仓库配置

检查已启用的仓库列表，以确认更改：

bash 复制代码

yum repolist

这将帮助你将 CentOS 7 配置为使用更快的中国镜像源，从而提高软件包的下载速度。