Blocking yahoo messenger using IPTables

[MKlinke]

On Saturday 13 March 2004 06:24, IAK Tanoli wrote:
> hi all
>
> i want to block yahoo & msn messenger using iptables.  I have
> successfully block msn messenger using iptbales with the following
> command:
>
> iptables -A FORWARD -p TCP --dport 1863 -j REJECT
>
> and also tried to block yahoo messenger using following commands:
>
> iptables -A FORWARD -p TCP --dport 5000:5001 -j REJECT
> iptables -A FORWARD -d cs.yahoo.com -j REJECT
> iptables -A FORWARD -d scsa.yahoo.com -j REJECT
> iptables -A FORWARD -d scsa.msg.yahoo.com -j REJECT
>
> but UNSECCESSFULL
>
> what should i have to do block yahoo messenger?
>

This may help with additional servers/ports. 

http://help.yahoo.com/help/us/mesg/twin/twin-15.html

Regards, Mike Klinke