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Ciso 506E PIX to block Instant Messaging

By mansari2 ·
How do I configure a PIX 506E to block all Instant Messaging ports & protocols? I basically want to prevent users from being able to use ANY instant messaging client on their workstations. I would like to kill this at the firewall. Also, please understand that I am a novice when it comes to firewalls so details on how to config are critical.


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