Securely backing up Linux machines to NAS?

[gaf-mNDKBlG2WHs at public.gmane.org (Jerry Feldman)]

On 09/11/2009 10:56 PM, Dan Ritter wrote:
> On Fri, Sep 11, 2009 at 10:41:47PM -0400, Scott Ehrlich wrote:
>  =20
>> So what are the simplest options to back up the Linux hosts?   rsync
>> does come to mind, but how to do so securely from each host?   I'd
>> consider something via ssh, but that would mean an interactive login,
>> and encrypting individual files on the hosts is not an option.
>>    =20
> No interactive login required, assuming the Terastation has a
> reasonable version of SSH that can use an authorized_keys file
> and you can populate it with a non-passworded key.
>
> If you can't, then connect the Terastation directly to a
> frontend with a crossover cable, mount the TS on the frontend,
> and do backups to the frontend.
>
> -dsr-
>
>  =20
I just set up a WD MyBook WE to back up about 500GB of data from our NFS
server. I decided to use rsnapshot primarily because it is already a
proven backup system that uses ssh and rsync. The newer MyBooks come
with both rsync v3 and ssh installed, so adding software from optware is
pretty straightforward. I used to use a shell script for the purpose,
but I prefer something that uses a configuration file. The MyBook can
use encrytion keys and ssh to the main server. So, now I have most
everything backed up on the main server, so the task now is for the IT
guys in NY to send me a dist so I can backup the backup volume so they
don't have to pump 500GB down a 2Mbps pipe. (Regus just got a new,
faster system, but we are now capped at 2Mbps shared. I'm discussing our
options with Regus to upgrade).

--=20
Jerry Feldman <gaf-mNDKBlG2WHs at public.gmane.org>
Boston Linux and Unix
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