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无法打开配置文件“/etc/systemd/resolved.conf”：权限被拒绝

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无法打开配置文件“/etc/systemd/resolved.conf”：权限被拒绝

systemctl status systemd-resolved.service回报

 systemd-resolved.service - Network Name Resolution
     Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2023-02-01 19:47:24 CET; 15min ago
       Docs: man:systemd-resolved.service(8)
             man:org.freedesktop.resolve1(5)
             https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
             https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
   Main PID: 65445 (systemd-resolve)
     Status: "Processing requests..."
      Tasks: 1 (limit: 36023)
     Memory: 1.6M
        CPU: 3.572s
     CGroup: /system.slice/systemd-resolved.service
             └─65445 /lib/systemd/systemd-resolved

Feb 01 19:47:20 srvides00 systemd[1]: Starting Network Name Resolution...
Feb 01 19:47:24 srvides00 systemd-resolved[65445]: Positive Trust Anchors:
Feb 01 19:47:24 srvides00 systemd-resolved[65445]: . IN DS 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d
Feb 01 19:47:24 srvides00 systemd-resolved[65445]: Negative trust anchors: home.arpa 10.in-addr.arpa 16.172.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.>
Feb 01 19:47:24 srvides00 systemd-resolved[65445]: Failed to open configuration file **'/etc/systemd/resolved.conf': Permission denied**
Feb 01 19:47:24 srvides00 systemd-resolved[65445]: Failed to parse configuration file: Permission denied

Feb 01 19:47:24 srvides00 systemd-resolved[65445]: **Failed to stat /etc/resolv.conf: Permission denied**
Feb 01 19:47:24 srvides00 systemd[1]: Started Network Name Resolution.

请在下面找到权限详细信息

-rwxr-xr-x 1 root root 1406 Apr  7  2022 /etc/systemd/resolved.conf

lrwxrwxrwx 1 root root 39 Jan 20  2021 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf

可能出了什么问题，我们使用的是 Ubuntu 22.04.1

ping /etc/hosts 中的任何条目时出现“名称解析暂时失败”

答案1

关于“名称解析暂时失败”尝试 ping /etc/hosts 中的条目时出现错误消息，这可能表明 systemd 解析的服务无法将主机名正确解析为 IP 地址。要排除故障，您可以尝试重新启动 systemd-resolved 服务，检查 /etc/resolv.conf 和 /etc/systemd/resolved.conf 文件的内容以确保它们配置正确，并检查 /etc 中的条目是否正确/hosts 文件是正确的。

这可能表明文件的权限有问题。已解析的服务可能需要对配置文件的读取访问权限才能正常工作。似乎正在运行解析的服务，但没有足够的权限来访问所需的文件。

建议检查配置文件的权限，并确保它们的设置使得解析的服务可以访问它们。例如，文件 /etc/systemd/resolved.conf 的所有者应该是运行解析服务的用户或组，或者应该具有其他人设置的读取权限。

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