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delegating name servers in Bind9


From: dninja at gmail.com (Robin Wood)
Date: Thu, 19 Mar 2009 16:57:36 +0000

2009/3/19  <byte.bucket at 4a44.com>:

Hi
I'm trying to play with DNS tunnelling and need to setup a name server
for a subdomain on my network. I'm running Bind9 locally and from what
I've read the setup should be simple but I can't get it to work.

I've got these lines in my db.attack file:

attack.int. ?IN NS digininja.org.
tunnel.attack.int. ? IN ?NS ?desktop.attack.int.
desktop ?IN A 192.168.0.4

which I think means that anything to attack.int is taken care of by
the nameserver digininja.org but anything to the subdomain
tunnel.attack.int should be passed to the nameserver running on
desktop.attack.int.

I can get an IP for desktop.attack.int but not for tunnel.attack.int
or *.tunnel.attack.int . I've watched traffic and there are no
requests coming into desktop so the delegation isn't working.

Can anyone suggest what I'm doing wrong?

Robin
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Give chapter 9 of O'Reilly's "DNS and Bind" book the once over.
Specifically the section called "How to Become a Parent: Creating
Subdomains". ?If you don't have a copy, you can find a free online version
here: http://docstore.mik.ua/orelly/networking_2ndEd/dns/index.htm .

I'll give that a read.

Robin


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byte_bucket

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