Why is my RHEL server communicating to root DNS directly and not routed through internal DNS

Solution Verified - Updated -

Issue

  • RHEL server communicating to root DNS directly and not routed through internal DNS.
  • In logs could only find DNSSEC validation-related messages in servers at the reported time.
[root@xyz ~]# cat /var/log/messages| grep 00:00
Mar  6 00:00:02 xyz systemd[1]: Stopping User Slice of root.
Mar  6 00:00:02 xyz systemd: Stopping User Slice of root.
Mar  6 00:00:20 xyz systemd[1]: Started update of the root trust anchor for DNSSEC validation in unbound.
Mar  6 00:00:20 xyz systemd: Started update of the root trust anchor for DNSSEC validation in unbound.
Mar  7 00:00:01 xyz systemd[1]: Starting update of the root trust anchor for DNSSEC validation in unbound...
Mar  7 00:00:01 xyz systemd: Starting update of the root trust anchor for DNSSEC validation in unbound...

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

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