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Date: Wed, 10 Mar 2010 17:32:44 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: OpenSSH pubkey authentication failing after update to 5.4
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On Mar 10 17:15, Thorsten Kampe wrote:
> Hi,
> 
> today I updated to OpenSSH 5.4 from 5.3 and I noticed on four different 
> hosts that pubkey authentication was not working anymore after the 
> update (while password authentication still works).
> 
> I started the server with "-ddd" and this is the (in my opinion) 
> critical difference:
> 
> # 5.3 (old SSH)
> temporarily_use_uid: 500/513 (e=1105/513)
> trying public key file /home/admin/.ssh/authorized_keys
> fd 4 clearing O_NONBLOCK
> matching key found: file /home/admin/.ssh/authorized_keys, line 1
> Found matching DSA key: 1b:31:25:da:6f:89:17:e8:25:46:46:60:ed:6f:a2:6c
> 
> # 5.4 (new SSH)
> temporarily_use_uid: 500/513 (e=1105/513)
> trying public key file //.ssh/authorized_keys
> restore_uid: 1105/513
> temporarily_use_uid: 500/513 (e=1105/513)
> trying public key file //.ssh/authorized_keys
> restore_uid: 1105/513
> Failed publickey for admin from 149.44.136.129 port 2864 ssh2
> 
> 
> What else can I provide to help troubleshooting this issue?!

It works for me, regardless of running as service or in the commandline.
The path to the authorized_keys file is the entry from /etc/passwd.  You
should try to find out where it's getting the / from in the path to
authorize_keys.  Do you have two different entries for the Administrator
user, by any chance?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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