Bind version with RHEL6 and RHEL7 doesn't handle zero ttl domain properly.

Solution Verified - Updated -

Issue

  • Bind versions shipped with RHEL6 and RHEL7 doesn't handle zero ttls domains/subdomain properly.
    • It send single query to reference/forwarder instead of multiple.

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Bind before bind-9.9.4-69.el7

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