Check Script

[Kevin Powell]

Hello,   I'm new to IPTables, and have wrote a script that does exactly what I want it to do.  Allow everything on the internal LAN out, but block everything from the external LAN.  It seemed pretty easy to write, so I'm sure I did something wrong.  If anyone notices any problems with this, could you let me know?     iptables=/sbin/iptables $iptables -F INPUT $iptables -F OUTPUT $iptables -F FORWARD $iptables -P INPUT ACCEPT $iptables -P OUTPUT ACCEPT $iptables -P FORWARD ACCEPT $iptables -t nat -A POSTROUTING -o eth0 -d ! 192.168.1.0/24 -J MASQUERADE $iptables -A FORWARD -s 192.168.1.0/24 -j ACCEPT $iptables -A INPUT -d 0/0 -p tcp -j DROP $iptables -A INPUT -d 0/0 -p udp -j DROP $iptables -A INPUT -d 0/0 -p icmp -j DROP   Thanks! Kevin