Mr. Yates,
Since Fedora 8 had BackupPC included in the distribution, user backuppc was
already in existence and set for no logon.  As root the su -s line changes
the user to 'backuppc'.  The test below is run as backuppc user on the
archive machine establishing a connection to the client machine and asking
"whoami" with a response from the client of "root".  This proves that the
ssh-keys are working so no password is required and that backuppc has root
authority on the client.  This test was run on an earlier post with IP
address instead of hostname.  This was to repeat the test using hostname.  
- ken

-----Original Message-----
From: royden yates [mailto:royden.yates AT gmail DOT com] 
Sent: Monday, October 13, 2008 8:32 PM
To: General list for user discussion,questions and support
Subject: Re: [BackupPC-users] Almost working

On Mon, 2008-10-13 at 20:01 -0400, Kenneth L. Owen wrote:
> If I understand you correctly:
> 
> [ken@Archiver ~]$ su -
> Password: 
> [root@WinServer ~]# su -s /bin/bash - backuppc
> -bash-3.2$ ssh -l root WinServer whoami
> root
> -bash-3.2$
> 
> It works this way, too.  -- ken
> 
> (note:  names have been changed to protect confidentiality.)
> 

Having failed to properly digest a previous issue, I am hesitant... :-)

On the backuppc server, have you tried after su - backuppc (ie you
assume the id of the backuppc user):

/usr/share/backuppc/bin/BackupPC_dump -v -f WinServer

This should provide some debug output that may be enlightening as to why
the backup fails. Of course, rsync must be installed on the client pc in
addition to the sshd.

RY


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