[RHOCP 4] To enable TLS based secured connection for all the DNS query triggerd in OpenShift 4

Solution Verified - Updated -

Issue

  • How to enable TLS communication between Openshift-DNS & external private CoreDNS server?
  • Outgoing DNS traffic from the OpenShift cluster needs to be secured.

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4

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