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    <title>CentOS 7 on 知识铺的博客</title>
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      <title>CentOS 7 更换 YUM 源为国内镜像源</title>
      <link>https://index.zshipu.com/geek002/post/202410/CentOS-7-%E6%9B%B4%E6%8D%A2-YUM-%E6%BA%90%E4%B8%BA%E5%9B%BD%E5%86%85%E9%95%9C%E5%83%8F%E6%BA%90--%E7%9F%A5%E8%AF%86%E9%93%BA/</link>
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      <description>在 CentOS 7 中，将 YUM 源更改为国内的阿里云镜像源可以显著提升软件包的下载速度。下面是具体的操作步骤： 1. 备份原有 YUM 源配置 为了确保可以在必要时恢复到原始状态，我们首先需要备份当前的 YUM 源配置文件。这一步非常重要，避免了因意外情况导致系统无法正常工作。 bashsudo cp -arf /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup 通过上述命令，您将会创建一个名为 CentOS-Base.repo.backup</description>
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