Chained notifies

[Mark_Andrews at isc.org]

> 
> I have a strange situation, a possibly unique one.
> 
> 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.
> 
> Can anyone suggest a solution? I have to use the 3 server system - I
> don't have an option due to the client's security firewall requirement.
> I've not been able to find anything in the docs, but I'm sure I'm
> missing something obvious.

	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...
> 
> /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