Re: Request for discussion on defending against specific Nmap TCP syn and version scans.

From: Aaron (microchp@microchp.org)
Date: Thu Mar 02 2006 - 19:46:25 EST


There may also be some interest in looking up tarpitting.
 It does not stop scanning but maybe be used in
conjunction with changing the OS fingerprint to slow a
scan lower the accuracy of the results as threads will
time out. If used on enough addresses, it can make
enumeration a pita.

Also change the default TTL.

Honeyd and DTK are also fun to play with but may draw the
wrong attention to your address space.

If you really want to confuse nmap, dont run any
firewalls, turn on all services and leave everything
default. ;)

--Aarön

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