用PHP编写自己的（种）DNS服务器

Question

I'm asking myself if it is possible to send the ip address from my router to a php script on a web hosting package (not an own server), safe it (like http://www.axelteichmann.de/DynamicDNS/index-DynDNS-mit-Fritzbox.php) and relay all incoming traffic on port 80 http and 443 https (via socket_create_listen) to the safed ip address, where my local owncloud instance (on a more powerful machine) is waiting for incoming request. I'm not quite sure if this would work. Does anyone knows that?

Answer 1

I found an interesting post on: http://www.phpgangsta.de/client-ip-problem-bei-reverse-proxy-betrieb But it's also requiring changes on the underlying server.