2.3. 自动安装安全更新

流程

1. 在 /etc/dnf/automatic.conf 文件中，在 [commands] 部分中，确保将 upgrade_type 选项设置为 default 或 security ：

   [commands]
   #  What kind of upgrade to perform:
   # default                            = all available upgrades
   # security                           = only the security upgrades
   upgrade_type = security

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2. 启用并启动 systemd 计时器单元：

   # systemctl enable --now dnf-automatic-install.timer

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验证

1. 验证计时器是否已启用：

   # systemctl status dnf-automatic-install.timer

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