Chained notifies
Mark_Andrews at isc.org
Mark_Andrews at isc.org
Mon Oct 14 05:45:03 UTC 2002
> Mark.Andrews at isc.org wrote:
>
> > > In my configuration I have a bind 8 server (server A) established in a
> > > dmz. I have a bind 8 server operating as a master in the open Internet
> > > (server B). And I have a third bind 8 server behind a firewall in
> > > rfc1918 address space (server C). I have a tunnel between server A and
> > > server C, both of which function as slaves.
> > >
> > > A zone in Server B is modified. Server B sends a notify to Server A.
> > > Server A, using tsig, performs a transfer from Server B. Having
> > > completed the transfer, I need server A to send a notify for the changed
> > > zone to Server C.
>
> > If C is a listed nameserver then it should just work provided
> > you have up to date versions. Otherwise use notify-also on A.
>
> Thanks for the response. However...
>
> The issue as I see it is that if Server B sends a notify to Server A and
> Server C, at approximately the same instant, and the zone is larger
> than, lets say, a packet or two, then when Server A looks at Server C,
> the serial will not yet have changed, because the zone is just starting
> to transfer.
Server C will ignore the message from B as B is not its master.
> How do I get Server C to notify server A, after it has the
> new complete zone, even though it is a secondary as well?
You have A and C reversed in this sentence. Named will do this
already provide you have a up to date version.
Mark
> Thanks again.
>
> /rlj
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at isc.org
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