On Sep 29, 2011, at 4:06 PM, Bill Owens wrote:

> I've obviously been asleep and not following along with the announcements of 
> new features in BIND 9.9 until today

I'm happy you read it, and hope to see you at the forum/customer webinar next 
week!  I'll be speaking, and will bring my fireproof undies.

> . . . both Evan's blog post 
> <http://www.isc.org/community/blog/201109/isc-bind-990a1-feature-preview> and 
> the announcement of next week's webinar include NXDOMAIN redirection as the 
> first new feature. I'm really surprised by that - is this something that BIND 
> users were clamoring for?

Yes.

> Or is it a situation where other servers were providing this feature, and 
> BIND needed it to maintain parity?

Yes.

> Obviously those of us who find this idea disturbing don't need to enable it, 
> and DNSSEC provides an effective defense against those who would enable it* 
> but it still leaves me curious.

We came to the conclusion that no matter how much we wanted it to not be true, 
people find a way to do NXDOMAIN if they want to.  The issue is not ours to 
push, it's between the ISP and the customer ultimately, and people will do it 
-- and more intrusively -- than BIND 9.9 will.

> *except that perhaps those who enable this feature will use it as an excuse 
> to avoid enabling validation, which would be a very bad result, IMO. . .

That's perhaps the case, but once again, it's up to the ISP ultimately.  Don't 
think that just because BIND 9 didn't do this before, that people didn't.  They 
instead use a proxy which filters answers, for instance, and returns whatever 
they want to the customer.

--Michael

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