ONTAP Hardware

ONTAP messages log: Host keys on SSH server are NULL ...

WAFLHERDER

Hi All,

 

What keys are being referred to when ONTAP (8.2.5) logs this message?

 

"sshd.hostKeys.null:error]: Host keys on SSH server are NULL."

 

What action might have triggered this? Someone attempting to connect to the Filer via sftp?

 

Cheers,

Robb.

 

1 REPLY 1

WAFLHERDER

OK, I found the answer, well an answer.

 

Searching in the syslog translator application itself didn't show me anything, but going via a Knowledge Base entry did, see the link in this article: https://kb.netapp.com/app/answers/answer_view/a_id/1030291

 

Apparently : This message occurs when the host keys on Secure Shell(SSH) server is NULL due to some corruption or loading of host keys has failed.

Corrective Action is: Disable ssh and then enable ssh as follows: options ssh.enable off options ssh.enable on

 

Unfortunately it's not really that clear exactly which file(s) are corrupted/missing. I can ssh into the Filer apparently without issue.

 

Strange ...

 

Announcements
NetApp on Discord Image

We're on Discord, are you?

Live Chat, Watch Parties, and More!

Explore Banner

Meet Explore, NetApp’s digital sales platform

Engage digitally throughout the sales process, from product discovery to configuration, and handle all your post-purchase needs.

NetApp Insights to Action
I2A Banner
Public