[CentOS] Securely backing up Linux machines to NAS?

[Jake]

You'll want to look into rsync over ssh with ssh key-based authentication.

On 9/12/09, Les Mikesell <lesmikesell at gmail.com> wrote:
> Scott Ehrlich wrote:
>> I have been tasked with having a Buffalo Terastation Pro 2 NAS box,
>> likely to be connected to a Linux box via samba, be the storage device
>> to back up mostly Ubuntu and Centos systems.  The trick is, the
>> machines to be backed up need to do so in an automated fashion and
>> make a secure, encrypted connection to my Linux box hosting the NAS.
>> The NAS does have SSL enabled for web admin access, though the same
>> login credentials are used to authenticate the Linux host via samba to
>> the NAS.
>>
>> 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.
>>
>> NFS is also available on the NAS, but considering the security
>> concerns, I will not use that, nor do I want to enable any more
>> services on the linux machines being backed up than necessary, meaning
>> samba is not an option, unless it remains the ONLY one.
>>
>> I ONLY plan to use samba to mount the NAS to my Linux server, unless
>> someone comes up with a more secure method, or even away to negate the
>> need of the Linux server and permit the hosts to back up directly to
>> the NAS...
>
> I always recommend looking at backuppc first for an online backup service
> because it gets almost everything right and has a simple web interface for
> configuration and acces.  It's not a real good fit for a NAS though.  You
> could
> probably make it work over NFS - and fix the security issue by connecting it
> directly to a 2nd NIC on the linux box and nothing else, but it would be
> much
> easier to just add some large drives either internally or via eSATA on the
> linux
> box itself.  It can't use samba-mounted storage for it's archive because it
> uses
> hard links to save space for duplicate files.
>
> --
>    Les Mikesell
>     lesmikesell at gmail.com
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Jake Paulus
JakePaulus at gmail.com