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> We would
like to block the use of instant messengers by blocking
> the port
through TCP/IP that they come in on. Does anyone know
> how to
determine what port these messengers use?
If this is for external access,
shouldn't this be the other way around, you should block every port at the
firewall, then only open the ones you know are
needed, basically just port 80 for HTTP, and maybe 21 for
SMTP.
If you are trying to restrict traffic on
your internal networks then you can determine the ports by running netstat -a on
the PC before running AOL IM and again while it's running. comparing the two
will show you the ports used.
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