OSEC

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Re: Block OS Detection

vtlistswyae.de
Date: Wed Sep 05 2007 - 07:46:08 CDT


> On 8/31/07, Attari Attari <c70n3yahoo.co.in> wrote:
>> Hello All:
>>
>> Is there a PRACTICAL solution from PRODUCTION
>> environments that can be used to block OS detection
>> from tools like NMAP? I googled and read some notes
>> but couldn't find a real world solution to blocking
>> Windows & Linux OS detection.

Such solutions and their limits are documented on the NMAP web page
http://insecure.org/nmap/misc/defeat-nmap-osdetect.html
(6th Google hit for "netfilter OS detection") and usually employ a
Linux-Netfilter or *BSD-PF firewall.

Bye

Volker

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