Re: Port Scanning: Is there a difference between stateful INVALID filtering and stateless TCP flag filtering?

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On 02/24/2010 04:42 PM, Mart Frauenlob wrote:

> iptables -I INPUT -m state --state INVALID -j LOG
> iptables -I INPUT -m state --state INVALID -j DROP
>
> then start your nmap scans... you will see what it catches....
>
> http://jengelh.medozas.de/projects/chaostables/ <- read this!
> http://xtables-addons.sf.net/ <- includes portscan detection module.
>
>   


Mart, thanks a lot for the links. I was also looking for such a solution
but didn't know much about xtable and add-on.
wish you a nice day.

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