Created
May 20, 2016 13:01
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#!/bin/bash | |
# Ref: http://www.contextis.com/resources/blog/wireless-phishing-captive-portals/ | |
# | |
# Steps : | |
# ./network_ap.sh | |
# ./create_ap wlan0 eth0 AccessPoint -g 10.0.0.1 | |
killall hostapd | |
killall dnsmasq | |
# | |
# First, delete all existing rules | |
# | |
iptables --flush | |
iptables --delete-chain | |
iptables --table nat --delete-chain | |
iptables --table nat -F | |
iptables --table nat -X | |
# | |
# Captive Portal | |
# | |
# - Replace `10.0.0.1` to `192.168.1.5:3000` to access remove server | |
# | |
iptables -t mangle -N localhost | |
iptables -t mangle -A PREROUTING -i wlan0 -p udp --dport 53 -j RETURN | |
iptables -t mangle -A PREROUTING -i wlan0 -j localhost | |
iptables -t mangle -A localhost -j MARK --set-mark 1 | |
iptables -t nat -A PREROUTING -i wlan0 -p tcp -m mark --mark 1 -j DNAT --to-destination 10.0.0.1 | |
sysctl -w net.ipv4.ip_forward=1 | |
iptables -A FORWARD -i wlan0 -j ACCEPT | |
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE |
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