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

["Aaron" <microchp () microchp org>]

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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