iptables.script

# (6) POSTROUTING chain rules
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

# (7) PREROUTING chain rules
iptables -t nat -A PREROUTING -p tcp -d 127.0.0.1 --dport 80 -j ACCEPT
iptables -t nat -A PREROUTING -p tcp -d 192.168.1.2 --dport 80 -j ACCEPT
iptables -t nat -A PREROUTING -p tcp -i eth1 --dport 80 -j REDIRECT --to-port 8080