[Samba] Automated samba online backup.

Christopher Wensink cwensink at five-star-plastics.com
Fri Mar 19 18:17:54 UTC 2021

We accomplish what your asking without asking for an admin password, but 
it's not done through samba-tool.  We have an external Synology NAS 
device with 72 TB of total storage, that remotely connects into the 
samba file share machine each night, and takes a file system backup.  It 
additionally takes a full VM backup each night via a system snapshot.

There is no direct connection for the samba machine to connect to the 
Synology, the Synology is reaching in and pulling out backups, this way 
if the samba file share machine is compromised it will not affect the 
backup machine.  DSM w/ Active Backup for business has worked pretty 
well for us, and there are options to simply use rsync  on a shell on 
the device if you want to do things that way too.  We went with a 12 bay 
Rackmount model, but there are consumer budget friendly devices 
available that have have the same functionality.


On 3/19/2021 1:10 PM, Andrew Bartlett via samba wrote:
> On Thu, 2020-04-30 at 10:27 -0300, Daniel Lopes de Carvalho via samba
> wrote:
>> Hi
>> I'm looking for a way to automate samba online backup with cron and
>> without
>> asking admin password. I wish to have a daily backup from my AD.
>> Is there a way to exec samba-tool domain backup without password or
>> do I
>> need to have a export a admin keytab or something like that.
>> Thanks
> (sorry for the late reply)
> In theory a keytab might work, and from there something that refreshes
> a credentials cache, but that is as sensitive as a password anyway.
> An offline backup is what you want in cron, and we are currently
> tidying up some of the rough edges on that.  If you see any issues
> using the offline backup in your situation please file a bug.  We are
> fixing the incompatibility with BIND9_DLZ.
> I hope this clarifies things,
> Andrew Bartlett

Christopher Wensink
IS Administrator
Five Star Plastics, Inc
1339 Continental Drive
Eau Claire, WI 54701
Office:  715-831-1682
Mobile:  715-563-3112
Fax:  715-831-6075
cwensink at five-star-plastics.com

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