Hi All,
I need to block all traffic of the Instant Message (AOL, Yahoo, hotmail
messenger) for my Internal Network Range (which consists of my user
workstations). By using DNS I was able to point all the workstations to one
local server on my network and route all Instant message traffic through
that server. But in order to achieve full control so that some smart user
doesn't add a entry of instant messenger servers in his hosts file and
by-pass the DNS, I want to block all the outgoing and incoming traffic for
ip addresses of the instant messenger servers for my internal Range. I can
get all the ip addresses of the messenger servers of yahoo, aol, hotmail by
doing nslookup. What would be the best way to block these ip addresses in
Checkpoint NG FP1. Thanks.
Raman
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