From: Brian Candler <b.candler@...>
Date: 2008-11-10T22:46:18+09:00
Subject: Re: problem with ssh -> authentication failed

> c:/ruby/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh.rb:195:in
> `start': Net::SSH::AuthenticationFailed
...
> Any suggestions what's wrong ??

I apologise for stating the obvious, but it looks like a wrong username 
and/or password. Or it could be that there is something else at the 
server side which is rejecting the connection, e.g. it's possible to 
configure ssh accounts so they only accept connections from a particular 
IP address, or so that they can only run certain commands (not shells).

Looking at sshd logs on the far side could help to determine the 
problem. Even better, try running sshd in debug mode, bound to a 
different port:

   # sshd -d -p 99

This will stay in the foreground without forking, and show you the 
processing of incoming connections. Add :port=>99 to your client of 
course.
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