systemd-resolved falls back to Google public DNS servers

Solution Unverified - Updated -

Issue

  • DNS requests are directed to Google public DNS servers .

  • The following entry is logged in messages log:

    Jun 18 08:01:56 rhel7 systemd-resolved: Switching to system DNS server 8.8.8.8.

Environment

  • Red Hat Enterprise Linux 7 (RHEL 7)
  • systemd-219.X
  • systemd-resolved-219.X

  • systemd-resolved is installed and enabled in /etc/nsswitch.conf :

    hosts:      files dns resolve
  • nameserver setting is missing in /etc/resolv.conf
  • DNS setting is missing in /etc/sysconfig/network-scripts/ifcfg-*

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