eninja at gmail
Aug 10, 2009, 12:49 PM
Views: 6246
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Re: SSH no longer functions after hostname change
[In reply to]
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Jon,
What is different with respect to software version, SSH config &
platform between this swtich and the dozen others that (could be
seeing a similar problem but) aren't?
-Eninja
On Aug 10, 2009, at 6:19 PM, Jon Wolberg <jon [at] defenderhosting>
wrote:
> Hi Paul-
>
> The funny thing is this is the only switch causing problems. We
> changed the hostnames on over a dozen others without any issues.
>
> I tried re-generating the keys to no avail.
>
>
> Jon Wolberg
> Systems Engineer
> Virtacore Systems Inc.
> "We Virtualize IT!"
>
>
> ----- Original Message -----
> From: "Paul Stewart" <paul [at] paulstewart>
> To: "Jon Wolberg" <jon [at] defenderhosting>, cisco-nsp [at] puck
> Sent: Monday, August 10, 2009 12:17:14 PM GMT -05:00 US/Canada Eastern
> Subject: RE: [c-nsp] SSH no longer functions after hostname change
>
> Normally all we do is a "crypto key gen rsa" if a hostname changes
> and we
> continue on... this regens the keys and stops/starts the SSH
> process....
>
> Paul
>
>
>
> -----Original Message-----
> From: cisco-nsp-bounces [at] puck
> [mailto:cisco-nsp-bounces [at] puck] On Behalf Of Jon Wolberg
> Sent: Monday, August 10, 2009 11:53 AM
> To: cisco-nsp [at] puck
> Subject: [c-nsp] SSH no longer functions after hostname change
>
> 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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>
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