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sr #109407: ssh fails: Too many authentication failures

Submitter:  Joerg Wunsch <joerg_wunsch>
Submitted:  Thu 02 Nov 2017 10:32:53 PM UTC
   
 
Category:  None Priority:  5 - Normal
Severity:  3 - Normal Status:  None
Privacy:  Public Assigned to:  rwp
Operating System:  None Open/Closed:  Closed
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Fri 03 Nov 2017 06:52:40 PM UTC, comment #3: 

Glad to hear you have it working now.  It could also be ordering too.  It could have been working with a different ordering of keys and now with the different ordering it doesn't.  Oh well.  All is well that ends well.  Happy to have helped debug it.

Bob Proulx <rwp>
Site Administrator
Fri 03 Nov 2017 07:27:41 AM UTC, comment #2: 

Thanks for the explanation, Bob.

I could swear this used to work in the past. Maybe I really added more keys to my agent in the meantime.

Got it working again now, so the ticket can be closed.

Joerg Wunsch <joerg_wunsch>
Fri 03 Nov 2017 05:08:55 AM UTC, comment #1: 

Hello Joerg. When ssh reports too many authentication failures it means that your client is providing too many failing keys.  This means that you probably have many keys loaded into your ssh-agent.  You can see this with 'ssh-add -l' or 'ssh-add -L'.  And with 'ssh -v' it should show these repeated key offers.

You can debug using ssh directly.  That will be blocked by the security that says only vcs commands.  That's okay.  But the handshake debug is useful.

ssh -v svn.savannah.gnu.org true

At that point there are various things you can do to make this work.

Bob Proulx <rwp>
Site Administrator
Thu 02 Nov 2017 10:32:53 PM UTC, original submission:  

Lately, my ssh access does not work anymore:


% svn up
Updating '.':
Received disconnect from 208.118.235.201: 2: Too many authentication failures for joerg_wunsch
svn: E170013: Unable to connect to a repository at URL 'svn+ssh://joerg_wunsch@svn.savannah.nongnu.org/avr-libc/trunk/avr-libc'
svn: E210002: To better debug SSH connection problems, remove the -q option from 'ssh' in the [tunnels] section of your Subversion configuration file.
svn: E210002: Network connection closed unexpectedly


Other ssh accesses (download area) fail with the same message.

I tried generating and uploading a new key, to no avail.

Joerg Wunsch <joerg_wunsch>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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    Date Changed by Updated Field Previous Value => Replaced by
    2017-11-03 rwp Assigned toNone rwp
        Open/ClosedOpen Closed

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