[ILUG-BOM] Blocking MSN and Yahoo messenger

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


        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
/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 -s 23 -l -j

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.


More information about the Linuxers mailing list