Monitoring ports

[Z Three Penguin]

Is there any way to monitor a port without having to open it.  I wanted to
write a program to detect port scans and wanted to monitor the ports without
having it look like every single port is open, which is what would happen if
I opened all the ports with a socket.

Any Ideas?

-Z3Penguin

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Z3Penguin                  Z3Penguin at PenguinPowered.Com
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