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Re: curiouser and curiouser

From: Chris Buxton
Date: Monday, April 19, 1999
Time: 8:47:00 am

>Chris, you were looking up my universal email address through a company
>called mailbank.com. They just forward emails to my real email address,
>donovan@websurfhawaii.com.
>
>If you punch in websurfhawaii.com you'll find lava.net.

OK. Starting at 207.26.206.185 (your name server), I get a response from a
root-server that says:
26.207.in-addr.arpa. 6D IN NS NIS.ANS.NET.
26.207.in-addr.arpa. 6D IN NS NS.ANS.NET.

A query to <ns.ans.net> yields:
206.26.207.in-addr.arpa. 12H IN NS malasada.lava.net.
206.26.207.in-addr.arpa. 12H IN NS mochi.lava.net.

A query to <malasada.lava.net> for a PTR record gives:
185.206.26.207.in-addr.arpa. 12H IN PTR pueo0185.lava.net.

The only error I found in any of this was that lava.net lists a third name
server for the zone in question.
206.26.207.in-addr.arpa. 12H IN NS malasada.lava.net.
206.26.207.in-addr.arpa. 12H IN NS dns2-l.ans.net.
206.26.207.in-addr.arpa. 12H IN NS mochi.lava.net.

They should tell their provider to update their delegation records.

Very straightforward. To make any changes to your reverse records, or to
have them delegated to you, you'll need to talk to lava.net.



You can do this type of investigation yourself, using the Dig tool provided
by M&M: <http://us.mirror.menandmice.com/cgi-bin/DoDig>. Start with
a root server in the server field
EXAMPLE: f.root-servers.net (*never* use a.root-servers.net)
the reversed ip address in the domain name field
EXAMPLE: 185.206.26.207.in-addr.arpa
NS in the query type field

Repeat with servers closer to the destination until you either find the
responsible server, or get an SOA record. An SOA record indicates that the
server thinks it can answer any question you might have about the reverse
zone in question. At this point, shorten the entry in the domain name field
to match the first part of the SOA record (the part on the left margin) and
ask again. The answer to this query should be your final answer.

It may take a little practice (it did for me, anyway), but it's valuable to
know how to do this sort of thing.

Hope this helps.
________________________________
Chris Buxton
Internet and Database Consultant



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