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Traffic on unusual port 52049 to a server inside monitored cloud accounts

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Cloud Volume ONTAP (CVO) 

Issue

  • The monitoring tool shows that the two HA nodes are attempting TCP (NFS) communication using an infrequently used port 52049.
  • The following errors are reported by monitoring tool:
    • Investigate your server host to determine if the unusual server port represents unauthorized behavior and the corresponding service should be shutdown.
    • Review the communication between your server host and the client host to determine if it conforms with your network policies.

 

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