ipa: ERROR: AD DC was unable to reach any IPA domain controller. Most likely it is a DNS or firewall issue

Solution Verified - Updated -

Issue

  • During IPA - AD Trust creation following error is observed.
# ipa trust-add  --type=ad .<AD Domain> --admin Administrator --password 
ipa: ERROR: AD DC was unable to reach any IPA domain controller. Most likely it is a DNS or firewall issue

Environment

  • Red Hat Enterprise Linux 7
  • IPA Server

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