未能打开配置文件‘/etc/systemd/ file’：权限被拒绝

Question

systemctl status systemd-resolved.service返回

 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.

请查找下面的许可详细信息

-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

有什么不对，我们在Ubuntu 22.04.1上

在/etc/host中ping任何条目时获得“名称解析中的临时失败”

Answer 1

对于在/etc/host中尝试ping条目时出现的“名称解析中的临时故障”错误消息，这可能表明systemd解析的服务无法正确地将主机名解析为IP地址。要排除故障，您可以尝试重新启动systemd解析服务，检查/etc/surv.conf和/etc/systemd/ can文件的内容，以确保它们配置正确，并检查/etc/host文件中的条目是否正确。

这可能表示文件的权限出现问题。解析的服务可能需要对配置文件的读访问才能正常工作。看来已解析的服务是在没有足够权限访问所需文件的情况下运行的。

建议检查配置文件上的权限，并确保设置了这些权限，以便已解析的服务能够访问它们。例如，文件/etc/systemd/ have的所有者应该是运行已解析服务的用户或组，或者应该设置其他服务的读取权限。