Google虚拟机:无法解析外部URL

Question

我的google云VM无法解析外部URL，请看屏幕截图。

在解决这个问题上有任何帮助，非常感谢

建议附加resolv.conf屏幕截图

重新启动系统后，解决以下错误

systemd-resolved.service - Network Name Resolution
   Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2020-02-13 10:25:59 UTC; 41s ago
     Docs: man:systemd-resolved.service(8)
           https://www.freedesktop.org/wiki/Software/systemd/resolved
           https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
           https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
 Main PID: 10316 (systemd-resolve)
   Status: "Processing requests..."
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/systemd-resolved.service
           └─10316 /lib/systemd/systemd-resolved

Feb 13 10:26:38 dev.seconize.co systemd-resolved[10316]: Failed to open /etc/hosts: Permission denied
Feb 13 10:26:38 dev.seconize.co systemd-resolved[10316]: Failed to start query: Permission denied
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Failed to open /etc/hosts: Permission denied
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Failed to start query: Permission denied
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with
Feb 13 10:26:40 dev.seconize.co systemd-resolved[10316]: Server returned error NXDOMAIN, mit

Answer 1

正如@sashank在评论中解释的那样，造成此问题的原因是文件/etc/hosts的权限错误。当权限固定后，重新启动systemd-resolved服务最终解决了这个问题。