Re: [DNS] An example of bad DNS delegation?

Re: [DNS] An example of bad DNS delegation?

From: Andrew Pam <xanni§>
Date: Fri, 13 Sep 2002 14:17:48 +1000
On Fri, Sep 13, 2002 at 10:04:33AM +1000, Michael McKinnon wrote:
> Look at and tell me what is wrong.

You might find this tool quite helpful:

> Apart from the fact that they are delegated to, it would appear
> that they should really be delegated to

Actually, "" is just another name for aka
"" and "" is another name for aka "".  Since DNS delegation relies on
the IP address, this does not cause any problems.

However, the SOA record does list as the primary
nameserver which conflicts with the delegation to so
to be fully standards-compliant it wouldn't hurt to redelegate to the
current names for those nameservers.  (Historically, they started out
as the Microplex nameservers before Microplex was bought by Optus and
apparently the delegation was not changed after the Optus
acquisition of Microplex.)

> And why does have an SOA on this as well?

Presumably because at some time in the past the domain was delegated
to Telstra and they have never removed the (now out of date) delegation.

> I have no connection with DSE, I just wanted to get to their website!
> I spoke with their Website Manager and she didn't believe me, and the only
> email address she could give me was at, which I can't even get to
> (through Telstra ADSL using Telstra nameservers!)

Yes, anyone using the Telstra nameservers will be unable to access since the Telstra zone is out of date and does not
contain a record for  The DSE technical contact needs
to contact Telstra and request that they remove the incorrect delegation
in order to permit Telstra customers to access their domain.  According
to "whois" their contacts are:

Domain ROID:             D0074645-AR
Domain Name:   
Last Modified:           Never Updated
Registrar ID:            R00010-AR
Registrar Name:          Melbourne IT
Status:                  ok

Registrant:              Dick Smith Electronics Pty Ltd.
Registrant ID:           Other 000 908 716

Registrant ROID:         C0223933-AR
Registrant Contact Name: THE MANAGER
Registrant Email:        bob_dyball&#167;

Tech ID:                 C0223935-AR
Tech Name:               Malcolm Brindley
Tech Email:              malcolm&#167;

Name Server:   
Name Server:   

%%% End of referred query result

Hope that helps,
		Andrew Pam
mailto:xanni&#167;                         Andrew Pam                       Chief Scientist, Xanadu                   Technology Manager, Glass Wings                      Manager, Serious Cybernetics		Donate two cents to our work!
P.O. Box 477, Blackburn VIC 3130 Australia	Phone +61 421 775 358
Received on Fri Oct 03 2003 - 00:00:00 UTC

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