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Re: [FW-1] Attack Info: Badly formed DNS


  • To: [email protected]
  • Subject: Re: [FW-1] Attack Info: Badly formed DNS
  • From: "Covington, Chris" <[email protected]>
  • Date: Tue, 9 Sep 2003 11:59:01 -0400
  • Reply-to: Mailing list for discussion of Firewall-1 <[email protected]>
  • Sender: Mailing list for discussion of Firewall-1 <[email protected]>
  • Thread-index: AcN2rD2U4ieBYUhBSKi4YsPNWmUKfAAPuJ+Q
  • Thread-topic: [FW-1] Attack Info: Badly formed DNS

I had to turn that Smartdefense option off as well with W2K and W2K3
servers.  It sounds like the "inspection" denies half of the DNS traffic
out there.

Chris

-----Original Message-----
From: Mailing list for discussion of Firewall-1
[mailto:[email protected]] On Behalf Of Nico De
Ranter
Sent: Tuesday, September 09, 2003 4:11 AM
To: [email protected]
Subject: [FW-1] Attack Info: Badly formed DNS


Hi,

I have a NG FP3 firewall protecting the connection to the Internet. It
allows all outgoing traffic by default, however when my DNS servers
(running bind 9) try to lookup an address on the Internet it gets
blocked by the firewall with a message stating

   Attack Info: Badly formed DNS

Any ideas why the firewall would block legitimate DNS traffic?

Nico

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