Someone

#!/bin/sh
iptables -F
iptables -P INPUT DROP
iptables -P OUTPUT ACCEPT
iptables -P FORWARD ACCEPT
echo "Abrindo portas do samba"
iptables -A INPUT -p tcp --dport 137:139 -j ACCEPT
iptables -A INPUT -p udp --dport 137:139 -j ACCEPT
iptables -A INPUT -p tcp --dport 445 -j ACCEPT
iptables -A INPUT -p udp --dport 445 -j ACCEPT
iptables -A INPUT -p icmp -s 10.0.0.0/24 --icmp-type echo-request -j ACCEPT
iptables -A INPUT -p tcp --dport 8567 -s 10.0.0.0/24 -j ACCEPT
echo "0" > /proc/sys/net/ipv4/icmp_echo_ignore_all
echo "1" > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 3128