To:
Randy Bush <randy@psg.com>
Cc:
David Conrad <david.conrad@nominum.com>, Rob Austein <sra+dnsop@hactrn.net>, dnsop@cafax.se
From:
Brad Knowles <brad.knowles@skynet.be>
Date:
Mon, 28 Apr 2003 23:02:21 +0200
In-Reply-To:
<E19A1kL-000DUs-Oo@ran.psg.com>
Sender:
owner-dnsop@cafax.se
Subject:
Re: draft-ietf-dnsop-serverid-01.txt
At 11:04 PM -0700 2003/04/27, Randy Bush wrote:
> To: noc
> Subject: broken server
>
> the server with unique identity <foo> gave me the suspicious
> result <bar> to query <baz>.
>
> unfortunately, i can not ascertain <foo>, and you provide no help.
In an anycast or load-balanced world, I don't think it's possible
to ascertain <foo>. You would have to have the server attach some
sort of unique identifier to each and every response, and that
identifier would have to be persistent across program restarts,
reboots, changes of IP address, etc....
If the identifier wasn't unique in this manner, when someone
complains that a particular server (according to the unique
identifier) is screwed-up, you would have no way of determining which
server it might have been.
--
Brad Knowles, <brad.knowles@skynet.be>
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
-Benjamin Franklin, Historical Review of Pennsylvania.
GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+
!w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++)
tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)
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