NOTIFY-triggered Auto-slaving (was Re: how to list ALL zones of my master server)

Kevin Darcy kcd at
Tue Oct 1 23:32:26 UTC 2002

Mark_Andrews at wrote:

>         If you want this write it up as a draft and submit it to
>         the IETF.  The working group thought about this when we did
>         NOTIFY but left it as a exercise for the future.  At the
>         time we were worried about security and theft of service
>         in addition to the meta data problem.  We also wanted the
>         basic zone content updates to get through to RFC status and
>         not to get bogged down in debate over what metadata needs
>         to be tranmitted let alone how to do it.
>         TSIG can provide the security and through that protection from
>         theft of service.  The rest is still a mess.

OK, Mark, try taking off your protocol-designer hat for a moment and put
on your BIND-implementor hat. Given that TSIG-signed NOTIFYs are now a
reality with BIND, without any protocol changes, RFCs or IETF/IESG action
required, and therefore security is no longer the issue it once was,
would it not be a reasonable feature request to have a BIND instance
automatically slave zones upon receipt of a TSIG-signature-verified
NOTIFY, if configured to do so by the administrator of said BIND instance
and using metadata provided, perhaps in template form, by said
administrator? It's a "halfway measure" only in the sense that we don't
have a whole protocol by which a master can communicate metadata to the
slave -- as you said, that's "still a mess" -- but just because we can't
do *everything* does that mean we should do *nothing* to automate
slave-creation? Is this an all or nothing proposition? I don't think so.
I know there a lot of DNS admins out there -- I'm one of them, since this
is one of the few things I haven't automated yet -- who want to eliminate
the drudge work of constantly editing named.conf files, and would eagerly
embrace a less-than-comprehensive solution to the problem.

- Kevin

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