authoritative: use other than for zone xfer?

[Mark.Andrews at nominum.com]

> In article <200006270249.MAA05917 at bsdi.dv.isc.org>,
>  <Mark.Andrews at nominum.com> wrote:
> >
> >> Len Conrad wrote:
> >> 
> >> > Other than enabling/disabling zone transfers, what other
> >> > advantage/disadvantage is there to an NS being authoritative or not?
> >> >
> >> > eg, who/what else cares if an authoritative NS is answering with correct
> >> > data but non-authoritatively?
> >
> >	Namservers.  If aa is not set they will reject answers as being
> >	possibly in error.
> 
> Do they really reject non-authoritative answers?

	Yes.  See src/bin/named/ns_resp.c, search for "Lame server".
	The fact that the server is lame is cached for 10 minutes
	(default).

	Mark

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Mark Andrews, Nominum Inc.
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