Update nameservers used by OCP 4

Solution Verified - Updated -

Issue

  • How to update the nameservers used by the OpenShift 4.x cluster?

  • Upstream nameservers have changed and need updating in the OpenShift cluster.

  • /etc/resolv.conf has changed on OpenShift nodes yet cluster is still using previous nameservers.

Environment

  • Red Hat OpenShift Container Platform(OCP) 4
  • DNS

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