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Date:      Tue, 17 Jul 2007 11:06:30 +0200
From:      "Heiko Wundram (Beenic)" <wundram@beenic.net>
To:        freebsd-stable@freebsd.org
Subject:   Re: Problems with named default configuration in 6-STABLE
Message-ID:  <200707171106.30795.wundram@beenic.net>
In-Reply-To: <469C835B.6090304@vwsoft.com>
References:  <200707162319.41724.lofi@freebsd.org> <200707171005.37507.wundram@beenic.net> <469C835B.6090304@vwsoft.com>

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On Tuesday 17 July 2007 10:52:43 Volker wrote:
> <snip>
> Relying on a zone transfer doesn't seem to be reliable to me as more
> than half of the root servers doesn't reply to AXFR requests.

I've heard pretty much the same thing as you did wrt. root name servers=20
denying AXFR, but as "it works" (TM), I don't see a reason not to use it. A=
nd=20
it seems that the author of the FreeBSD default named.conf thought likewise=
,=20
which is pretty okay with me (from the experience I gathered this morning).

By the way: using the roots as hints only adds to the number of requests yo=
ur=20
server has to do in order to retrieve first-level domain name servers, so i=
n=20
the end, the transmitted data should be way higher than doing one AXFR to=20
find them (simply because you'll see a large subset of those toplevel domai=
ns=20
being requested when you're publically offering a DNS server). And the data=
=20
is also cached on an AXFR in persistant storage, which is another major=20
benefit (for me).

=2D-=20
Heiko Wundram
Product & Application Development
=2D------------------------------------
Office Germany - EXPO PARK HANNOVER
=20
Beenic Networks GmbH
Mail=E4nder Stra=DFe 2
30539 Hannover
=20
=46on        +49 511 / 590 935 - 15
=46ax        +49 511 / 590 935 - 29
Mail       wundram@beenic.net


Beenic Networks GmbH
=2D------------------------------------
Sitz der Gesellschaft: Hannover
Gesch=E4ftsf=FChrer: Jorge Delgado
Registernummer: HRB 61869
Registergericht: Amtsgericht Hannover



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