[ILUG-BOM] Blocking MSN and Yahoo messenger

Tineeminee tineeminee@[EMAIL-PROTECTED]
Tue Sep 24 18:14:41 IST 2002


Hi!

        Thanks for your all your help I did manage to block MSN by writing
the following commands
/sbin/ipchains -A input -p TCP -b --sport 1863 -j DENY

But having problem in blocking in Yahoo Messenger using the following
command
/sbin/ipchains -A input -p TCP -b --sport 5050 -j DENY
/sbin/ipchains -A input -p UDP -b --sport 5050 -j DENY
/sbin/ipchains -A output -p TCP -d 192.168.1.0/24 -s 216.0.0.0/8 23 -l -j
DENY

Can anyone please let me know if there is any way i can know which ports or
servers are being used by the users on
the N/W.

RamC




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