how to find external IP add.

**AceSpy** · December 27th, 2003 01:57 PM

Friends,

I am writting a program to find the external IP address of the client computer, I want to know what code the guy at showmyip.com uses to display the IP of the computer making the request which I am interested in using in my site+program.

Thanks,
AceSpy

**thejag** · December 27th, 2003 03:49 PM

first glance at the webpage i thought itd be a javascript, but when i looked at page's source code, i couldn't find the line, so i went to the next place and found a javascript that would show the viewer's ip address:

Code:

&lt;!-- ONE STEP TO INSTALL IP ADDRESS:

  1.  Copy the coding into the HEAD of your HTML document  --&gt;

&lt;!-- STEP ONE: Paste this code into the HEAD of your HTML document  --&gt;

&lt;HEAD&gt;

&lt;SCRIPT LANGUAGE="JavaScript"&gt;

&lt;!-- This script and many more are available free online at --&gt;
&lt;!-- The JavaScript Source!! http://javascript.internet.com --&gt;

&lt;!-- Begin
// http://www.kdcgrohl.com

// Depending on your server set-up,
// you may need to use the ".shtml"
// extension [instead of the "html"
// or "htm"] as the script uses Server
// Side Includes. To display in the
// title bar, exclude the
//"&lt;title&gt;&lt;/title&gt;" code from the page.

// This part gets the IP
var ip = '&lt;!--#echo var="REMOTE_ADDR"--&gt;';

// This part is for an alert box
alert("Your IP address is "+ip);

// This part is for the status bar
window.defaultStatus = "Your IP address is "+ip;

// This part is for the title bar
document.write("&lt;title&gt;Your IP address is "+ip+"&lt;/title&gt;");
//  End --&gt;
&lt;/script&gt;


&lt;p&gt;&lt;center&gt;
&lt;font face="arial, helvetica" size"-2"&gt;Free JavaScripts provided&lt;br&gt;
by &lt;a href="http://javascriptsource.com"&gt;The JavaScript Source&lt;/a&gt;&lt;/font&gt;
&lt;/center&gt;&lt;p&gt;

&lt;!-- Script Size:  1.09 KB --&gt;

from: http://javascript.internet.com/user-...p-address.html

**DeathIncarnate** · December 29th, 2003 10:57 PM

They did use javascript at showmyip.com, but there is an easier way but requires more.

PHP is an easy language for things like this because its a lot less code and does so much more, but it does require php installed on the server.

Example page:

<html>
<body>
<?php
echo "<p>Your ip is $REMOTE_HOST</p>"
?>
</body>
</html>

And the browser output would be:

Your ip is 127.0.0.1 (this would actually be your real ip)

Hope that helps, PHP is very useful

PHP links:

PHP Homepage
A nice site to learn from

- DeathIncarnate

***pwaring*** · December 29th, 2003 11:00 PM

That PHP code won't work on newer versions of PHP, because register_globals is off by default (and rightly so). You'd need to replace $REMOTE_HOST with $_SERVER['REMOTE_HOST'] in order for it to work.

**AceSpy** · December 30th, 2003 04:04 AM

Is there any way to do it in CGI/Perl?

AceSpy
www.acespy.com

***skiddieleet*** · December 30th, 2003 07:06 AM

this should help http://www.raingod.com/raingod/resou.../UserInfo.html
you should try searching google for "getting ip with cgi". That's how I got that page. Good luck.

**brt4c** · January 8th, 2004 01:52 PM

#!/usr/bin/perl
use CGI qw(:standard);

print "Content-type:text/html\n\n";
print "Your IP address is: ".$ENV{REMOTE_ADDR};

#I love you Perl...

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