Методические материалы Лохтурова Вячеслава

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====== 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) =====
<code>
root@gate:~# cat nat.sh
</code><code>
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
</code>

===== FreeBSD =====
<code>
gate# cat /etc/pf.conf
</code><code>
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
</code>

===== Apache =====

<code>
# cat index.php
</code><code>
<HTML>
  <HEAD>
    <META HTTP-EQUIV="Content-Type" CONTENT="text/html;charset=UTF-8">
  </HEAD>
  <BODY>
     Address of your computer: <?php echo $_SERVER['REMOTE_ADDR']; ?><br>
  </BODY>
</HTML>
</code>

Методические материалы Лохтурова Вячеслава

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