Correlation between NOTIFY-Source and AXFR-Source

[Paul Stead]

Sorry I should have made it clearer that the notifier should only be
shuffled to the top of the list if it is a defined primary for said zone.

I.e An IP on the notify-from list, but not a configured primary wouldn't be
in the list of primaries for that zone so would not be shuffled to the top
of the list.

Anand has done a better job at describing this function in other software
than my attempts

Paul


On Sat, 11 Mar 2023, 17:16 Grant Taylor via bind-users, <
bind-users at lists.isc.org> wrote:

> Hi Paul,
>
> Thank you for explaining.
>
> On 3/10/23 12:21 AM, Paul Stead wrote:
> > Imagine that 1.1.1.1 has lost network connectivity recently. A notify
> > comes from 2.2.2.2 - if I understand correctly Bind will try 1.1.1.1
> > first, time out and then try 2.2.2.2 - even though we know given the
> > situation that 2.2.2.2 has the latest copy of the zone we want.
>
> I guess what I don't understand is why it's a problem for BIND to follow
> the configuration that's on the system where it's running.
>
> N.B. I am quite certain that I've sent notifications from a system that
> wasn't a DNS server before.  I don't remember if it was dig or something
> else.
>
> I only see a loose suggestion that BIND can do a zone transfer from the
> system that it received notifications from.
>
> I could see having a hierarchy with multiple public secondaries which
> transfer from the hidden private mname as well as multiple public
> tertiaries which transfer from the secondaries and configuring the
> hidden private mname to send notifications to all servers.
>
> Perhaps the larger spirit of this thread is if that association can be
> made hard or not.
>
>
>
> --
> Grant. . . .
> unix || die
>
> --
> Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe
> from this list
>
> ISC funds the development of this software with paid support
> subscriptions. Contact us at https://www.isc.org/contact/ for more
> information.
>
>
> 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/20230311/85b4678f/attachment.htm>