Subject: Re: Should a nameserver know about itself? Date: Thu, May 10, 2001 at
09:26:07PM -0700 Quoting Sam Trenholme ([EMAIL PROTECTED]):
>
> My particular DNS server has this feature, which is enabled by default.
> When you send a MaraDNS name server this query:
>
> erre-con-erre-cigarro.maradns.org. query txt class 1 (internet)
>
> It sends back the version number of the server in question. (The
> answer that the maradns.org. name servers return is "MaraDNS version
> number not available")
>
> I know that some nameservers send me queries in this form:
>
> version.bind. query txt class 3 (what class is class 3 anyway?)
>
> Which may be script kiddies looking for older namservers to exploit, or
> could be dns admins seeing what I run.
Unbeknownst to you, those folks at Nominum (and their predecessor) have
put the same feature into BIND. Unless explicitly configured not to,
BIND till answer with its version as a TXT record whwen queried like so:
dig @localhost version.bind CHAOS TXT
and the answer comes through:
;; ANSWER SECTION:
version.bind. 0 CH TXT "9.1.1rc4"
Class 3 is CHAOS, for MIT Chaosnet.
(Guess I better upgrade...;-)
--
M�ns Nilsson Systems Specialist
+46 70 681 7204 KTHNOC
MN1334-RIPE
I wonder if I should put myself in ESCROW!!
