What ports and services are required to setup IPA, AD two-way trust?

Solution Verified - Updated -


  • ipa trust-add --two-way=true failed with following error message:

    ipa: ERROR: CIFS server communication error: code "3221225653", message "{Device Timeout} The specified I/O operation on %hs was not completed before the time-out period expired." (both may be "None")


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

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