Hello-

We recently changed some of our hostnames on various legacy switches to follow 
our naming convention, and after one change I can no longer SSH to the switch.

I get the below errors on the console with debug ip ssh client running:

Aug 10 11:23:44 EST: SSH5: sent protocol version id SSH-2.0-Cisco-1.25
Aug 10 11:23:44 EST: SSH5: protocol version id is - SSH-2.0-OpenSSH_4.3
Aug 10 11:23:44 EST: SSH2 5: RSA_sign: private key not found
Aug 10 11:23:44 EST: SSH2 5: signature creation failed, status -1
Aug 10 11:23:44 EST: SSH5: Session disconnected - error 0x00

I zero'ized the old keys and re-generated as well as set the hostname back to 
the original and zero'ized and re-generated to no avail.  Nothing shows up on 
Google and I can find no errata related to SSH access on the version of code we 
are running.

Has anyone encountered this before?  This is a 3750 running 12.2(44)SE2


Jon Wolberg
Systems Engineer
Virtacore Systems Inc.
"We Virtualize IT!" 

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