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Is port 445 on AD firewall required to be open bidirectionally or one way

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP
  • CIFS

Answer

Firewall on AD should open port 445 bi-directionally which is needed for SMB/CIFS to work properly and ensure that the server is listening on port 445 and that no firewalls (or other network devices) are blocking communication between ONTAP and the Domain Controllers.

 

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