On Wed, 2003-12-10 at 19:43, Lawrence Tang wrote: > Hi, > I have an RH9 with NAT access for the client. I would like to > block MSN & Yahoo messenger from the client to access. > Can any body advice me ? Thanks in advance. > > Best Regards, > > Lawrence Tang For MSN I've successfully used these three rules: iptables -A FORWARD -p tcp --dport 1863 -j DROP iptables -A FORWARD -d 207.46.110.0/25 -j DROP iptables -A FORWARD -d 207.46.104.20 -j DROP For Yahoo IM, you need to block access to ALL servers. The list below is probably no longer complete, if it ever was, but: /sbin/iptables -A FORWARD -d 63.216.136.22 -j DROP /sbin/iptables -A FORWARD -d 66.135.224.142 -j DROP /sbin/iptables -A FORWARD -d 66.136.175.132 -j DROP /sbin/iptables -A FORWARD -d 66.163.168.105 -j DROP /sbin/iptables -A FORWARD -d 66.163.172.117 -j DROP /sbin/iptables -A FORWARD -d 66.163.173.76 -j DROP /sbin/iptables -A FORWARD -d 66.163.173.77 -j DROP /sbin/iptables -A FORWARD -d 66.163.173.78 -j DROP /sbin/iptables -A FORWARD -d 66.163.173.203 -j DROP /sbin/iptables -A FORWARD -d 66.163.175.128 -j DROP /sbin/iptables -A FORWARD -d 66.163.178.78 -j DROP /sbin/iptables -A FORWARD -d 204.71.200.36 -j DROP /sbin/iptables -A FORWARD -d 204.71.200.37 -j DROP /sbin/iptables -A FORWARD -d 204.71.201.134 -j DROP /sbin/iptables -A FORWARD -d 204.71.201.141 -j DROP /sbin/iptables -A FORWARD -d 216.136.173.172 -j DROP /sbin/iptables -A FORWARD -d 216.136.173.179 -j DROP /sbin/iptables -A FORWARD -d 216.136.175.132 -j DROP /sbin/iptables -A FORWARD -d 216.136.175.142 -j DROP /sbin/iptables -A FORWARD -d 216.136.175.143 -j DROP /sbin/iptables -A FORWARD -d 216.136.175.144 -j DROP /sbin/iptables -A FORWARD -d 216.136.175.145 -j DROP /sbin/iptables -A FORWARD -d 216.136.175.145 -j DROP /sbin/iptables -A FORWARD -d 216.136.175.226 -j DROP /sbin/iptables -A FORWARD -d 216.136.224.134 -j DROP /sbin/iptables -A FORWARD -d 216.136.224.142 -j DROP /sbin/iptables -A FORWARD -d 216.136.224.213 -j DROP /sbin/iptables -A FORWARD -d 216.136.224.213 -j DROP /sbin/iptables -A FORWARD -d 216.136.224.214 -j DROP /sbin/iptables -A FORWARD -d 216.136.225.12 -j DROP /sbin/iptables -A FORWARD -d 216.136.226.117 -j DROP /sbin/iptables -A FORWARD -d 216.136.226.118 -j DROP /sbin/iptables -A FORWARD -d 216.136.226.209 -j DROP /sbin/iptables -A FORWARD -d 216.136.226.210 -j DROP /sbin/iptables -A FORWARD -d 216.136.227.168 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.129 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.130 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.131 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.133 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.135 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.148 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.151 -j DROP /sbin/iptables -A FORWARD -d 216.136.233.152 -j DROP j
