#!/bin/bash

# Flush existing rules
iptables -F
ip6tables -F
iptables -t nat -F
ip6tables -t nat -F

# Set default policies
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
ip6tables -P INPUT ACCEPT
ip6tables -P FORWARD ACCEPT
ip6tables -P OUTPUT ACCEPT

# Apply IPv4 rules
iptables -t nat -A PREROUTING -i enX0 -p tcp --dport 443 -j REDIRECT --to-ports 4443
iptables -t nat -A PREROUTING -i enX0 -p tcp --dport 80 -j REDIRECT --to-ports 4443

# Apply IPv6 rules
ip6tables -t nat -A PREROUTING -i enX0 -p tcp --dport 443 -j REDIRECT --to-ports 4443
ip6tables -t nat -A PREROUTING -i enX0 -p tcp --dport 80 -j REDIRECT --to-ports 4443

# Save rules
iptables-save > /etc/iptables/rules.v4
ip6tables-save > /etc/iptables/rules.v6

echo "iptables and ip6tables rules applied successfully."