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Is it safe to disable telnet (port 23) on an ONTAP cluster?

  1. Last updated
    May 14, 2025
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Category:
ontap-9
Specialty:
core
Last Updated:
5/14/2025, 8:47:58 PM

Applies to

ONTAP 9

Answer

  • Yes, telnet (TCP port: 23) is not required for normal operations in ONTAP.  SSH is the recommended and secure alternative.
  • To disable telnet in your cluster:
    ::> security protocol modify -application telnet -enabled false

Additional Information

N/A

 

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