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SubjectRe: How would I do this? (expert tricks) OT

--- Jan Engelhardt <jengelh@computergmbh.de> wrote:

>
> On Jun 19 2007 09:48, Marc Perkel wrote:
> >
> >I have a server with port 25 closed. I was to be
> able
> >to run a script every time someone tries to connect
> to
> >port 25, but from the outside the port remains
> closed.
> >I need the script that I'm going to run get the IP
> >address that tried to connect.
> >
> >I know it's off topic but it's part of an
> experiment
> >to stop spam.
>
> tcpdump -lni any port 25
> iptables -p tcp --dport 25 -j NFQUEUE
> ...
>

Thanks Jan, but I'm not sure it answers my question. I
want to run a script every time a connection attempt
is made in real time with the IP address as a
parameter to the script. How would I do that? Suppose
my script is:

iplog <ipaddress>





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