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From: Peter Wiersig (wiersig-ml_at_dns.glamus.de)
Date: Mon Aug 05 2002 - 02:43:17 CDT

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    Florian Schießl wrote:
    >
    > When I close the whole Server whith iptables, the portscanner says the
    > same.
    >
    > Iptables -P INPUT DROP
    > Iptables -P OUTPUT DROP
    >
    > The scanner says, that pop,smtp,http,... And the other mentioned ports
    > are open? Häh?

    Understand your portscanner.

    If your utility expects a tcp-reset packet after a syn-packet to a
    closed port, your DROP-rules cause the scanner to misreport the
    open ports list.

    Peter 

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