Method of writing zone files

[Marcus Frenkel]

Thanks Matus.

Does bind keep the received messages for zone updates in queue during rndc
freeze, and apply them after rndc thaw? I think that while rndc freeze is
in effect, bind will ignore (and not keep) notify messages for zone
updates. The drawback in this case is that a zone will only update again
after the refresh interval. Please correct me if I'm wrong.

On Tue, Nov 13, 2018 at 1:08 PM Matus UHLAR - fantomas <uhlar at fantomas.sk>
wrote:

> >On 12-Nov-18 14:39, Marcus Frenkel asked about backing up slave zone
> >files & bind's update mechanism:
>
> On 13.11.18 06:37, Timothe Litt wrote:
> >I believe you're asking the wrong questions and are likely to run into
> >complications.  You don't know when BIND will merge the journal, or that
> >rsync will atomically snapshot the zone file and the journal.  So you
> >will get a coherent copy of the the zone file - but it may be stale.
> >The journal may be earlier or later than the zone file, or it may be
> >incomplete. This means that a restore  may have the slave serve stale
> >data - until it queries the master for any updates & if necessary, fixes
> >the journal file.  If the master happens to be down, this is especially
> >suboptimal.
> >
> >So I would exclude both files from rsync, and use another approach to
> >save a coherent copy of the zone file(s) in my backup procedure.
>
> rndc freeze can cause all journals to be synced and files saved.
> You can call this before backup and call rndc thaw after.
>
> --
> Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
> Warning: I wish NOT to receive e-mail advertising to this address.
> Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
> Linux IS user friendly, it's just selective who its friends are...
> _______________________________________________
> Please visit https://lists.isc.org/mailman/listinfo/bind-users to
> unsubscribe from this list
>
> bind-users mailing list
> bind-users at lists.isc.org
> https://lists.isc.org/mailman/listinfo/bind-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/bind-users/attachments/20181113/1d56b0d2/attachment.html>