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RE: Block OS Detection Sep 04 2007 06:45PM
Philippe Bogaerts (xxradar radarhack com)
Hi,

Some (expensive) commercial firewalls have some protection mechanisms in
place.
In general, a statefull firewall, will stop a bunch of NMAP probes as well
as most ICMP tricks.
Some firewalls have SYN, IP TLL and ID randomization features on board.

Regards

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From: l...

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