Subject: Looking for Port Numbers for IPF
To: None <email@example.com>
From: J. Buck Caldwell <firstname.lastname@example.org>
Date: 07/12/2001 10:56:39
My employer has asked that I block access to instant messenger services
like ICQ, MS Messenger, AIM, and YIM. I know ICQ used port 4000 at one
time, is that still the case? What ports do these other services use?
Any help would be appreciated. I checked IANA's well-known port list,
but it wasn't much help - doesn't list any specific service except ICQ,
which conflicts with another previously-registered service (which is why
I was wondering if it changed).
- J. Buck Caldwell
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