====== Сервис Captive Portal ======
* Captive Portal Using PHP and iptables Firewall on Linux ([[http://aryo.info/labs/captive-portal-using-php-and-iptables.html]])
* Using iptables and PHP to create a captive portal ([[http://www.andybev.com/index.php/Using_iptables_and_PHP_to_create_a_captive_portal]])
===== Linux(Ubuntu) =====
root@gate:~# cat nat.sh
iptables -t nat --flush
iptables -t nat -A POSTROUTING -o eth1 -s 192.168.X.0/24 -j MASQUERADE
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j DNAT --to-destination 192.168.X.1
iptables -t nat -I PREROUTING -i eth0 -s 192.168.X.10 -j ACCEPT
conntrack -F
===== FreeBSD =====
gate# cat /etc/pf.conf
rdr on em0 proto tcp from 192.168.X/24 to any port 80 -> 127.0.0.1 port 80
nat on em1 from 192.168.X/24 to any -> 172.16.1.X
===== Apache =====
# cat index.php
Address of your computer: