Well before your post I tried:
command="rsync"

But this fails.  It seems BPC wants to run some other commands besides just 
rsync.  The failure said something about not being able to get the filelist.

Mike Loseke wrote:

> You can prefix the key in /root/.ssh/authorized_keys with something
> like the following:
> 
>   no-pty,no-agent-forwarding,no-X11-forwarding,no-port-
forwarding,command="rsync
> --server --sender -vlogDtprze.iL --ignore-errors --numeric-ids
> --inplace . /" ssh-rsa ...
> 
> This will force a ssh connection to start rsync rather than a shell.
> 
> On Fri, Mar 18, 2011 at 5:57 AM, Neal Becker <ndbecker2 AT gmail DOT com> 
> wrote:
>> Neal Becker wrote:
>>
>>> I'm interested in setting up linux->linux backup.  I don't like the idea of
>>> giving permission for machine1 as user backup to ssh to machine2 as root.
>>> What are the options?
>>>
>>> 1. Can ssh be restricted so that the only command user backup can run is
>>> rsync? 2. Is there an easy way (using acls?) to give a user backup read
>>> access to everything (probably not)
>>> 3. Some other options I haven't thought of?
>>>
>>>
>>
>> Maybe I can use the command=rsync option to the client's authorized_keys
>> file?
>>
>>
>> 
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> 
> ------------------------------------------------------------------------------
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------------------------------------------------------------------------------
Colocation vs. Managed Hosting
A question and answer guide to determining the best fit
for your organization - today and in the future.
http://p.sf.net/sfu/internap-sfd2d
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