Security Basics mailing list archives

RE: DNS Records


From: "Brian Kirby" <bkirby () adsnetcurve com>
Date: Wed, 18 Jun 2003 09:45:26 -0400


Yes it is possible if you allow any host(ip address) to do zone
transfers. Most name server daemons allow you to specify what hosts you
want to allow to request transfers, and block all others. You can also
block TCP port 53, and only allowing UDP port 53 with an ACL or Firewall
ruleset. I do both.

 Brian

-----Original Message-----
From: Fred Dirkse - OIC Group, Inc. [mailto:lists () oicgroup net] 
Sent: Tuesday, June 17, 2003 5:26 PM
To: security-basics () securityfocus com
Subject: DNS Records

Is it possible to point to a DNS server and somehow get ALL records from
it
(ie - return all the domain records that server is authoratative for)?
If so, how? and how could one stop it from happening if so?

Regards,
Fred


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---------------------------------------------------------------------------
Evaluating SSL VPNs' Consider NEOTERIS, chosen as leader by top analysts!
The Gartner Group just put Neoteris in the top of its Magic Quadrant,
while InStat has confirmed Neoteris as the leader in marketshare.

Find out why, and see how you can get plug-n-play secure remote access in
about an hour, with no client, server changes, or ongoing maintenance.

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