IP-adresses when using Proxy-Server

Anon

Hi there,

Does someone know how to get the ip-adres of a user when he or she is behind a proxy? I've tried it with this script but it doesn't work:

<?
if ($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"] != ""){
$IP = $HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"];
$proxy = $HTTP_SERVER_VARS["REMOTE_ADDR"];
$host = @gethostbyaddr($HTTP_SERVER_VARS["HTTP_X_FORWARDED_FOR"]);
}else{
$IP = $HTTP_SERVER_VARS["REMOTE_ADDR"];
$host = @gethostbyaddr($HTTP_SERVER_VARS["REMOTE_ADDR"]);
}

?>

Does someone have a workig script or can someone give me a hint 🙂

Tnx...
Jorn

Anon

<?php
$ip = getenv('REMOTE_HOST');
if(!$ip) {
$ip = getenv('HTTP_X_FORWARDED_FOR');
}
if(!$ip) {
$ip = $HTTP_X_FORWARDED_FOR;
}
if(!$ip) {
$ip = getenv('REMOTE_ADDR');
}
if(!$ip) {
$ip = $REMOTE_ADDR;
}
$ip = @GetHostByAddr($ip);
echo $ip;
?>
I used this to get the visitors IP, and display in my website. It's work !

Justin
http://www.ipoh1.f2s.com/

akozlov

100% working script:
$user_ip = ($HTTP_VIA)?($HTTP_X_FORWARDED_FOR)🙁$REMOTE_ADDR);

geecu

In some cases none of the two scripts above won't work. I guess that the proxy isn't sending that HTTP_X_FORWARDED_FOR.

For example if you set
mail.navion.no:80 as a proxy none of the above will work - all you can get is "mail.navion.no". I guess that's a Microsoft proxy so I'll check out to see if there's anything in their documentation about that.

Bye for now,
GK