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SSH fails after MAC algorithms

  1. Last updated
    Apr 1, 2025
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Views:
209
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
CORE
Last Updated:
4/1/2025, 8:31:52 PM

Applies to

  • ONTAP 9
  • Secure Shell (SSH)

Issue

  • SSH to cluster fails but System Manager access remains intact.
  • Errors can be observed when viewing messages.log :
 
Thu Apr 25 2024 02:26:44 -04:00 [auth:CRITICAL] 1 2024-04-25T02:26:44.365361-04:00 xxxxxx  sshd 73539 - - fatal: /etc/ssh/sshd_config line 102: Bad SSH2 mac spec 'hmac-sha1,hmac-sha2-256,hmac-sha2-512,hmac-sha1-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,umac-64@openssh.com,umac-64-etm@openssh.com,umac-128@openssh.com-etm'>umac-128@openssh.com-etm'.
00000f89.01279686 09eeeb31 Thu Apr 25 2024 02:26:44 -04:00 [daemon:info] 1 2024-04-25T02:26:44.366336-04:00 xxxxxx xinetd 9225 - - EXIT: ssh status=255 pid=73539 duration=0(sec)

 

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