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How can anyone find the IP address or ISP of another member in a forum or website? |
WordofMight
Member
Posts: 24
Location: where truth prevails
Joined: 26.02.08
Rank: Newbie |
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How can anyone find the IP address or ISP of another member in a forum or website?
!!!!THIS IS NOT GOING TO USED!!!!!!!!!
I AM JUST ASKING FOR THEORETICAL REASONS
(just to clarify it) |
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
ShapeShifters
Member
Posts: 393
Location: I'm lost...
Joined: 21.12.07
Rank: God |
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WordofMight wrote:
!!!!THIS IS NOT GOING TO USED!!!!!!!!!
I AM JUST ASKING FOR THEORETICAL REASONS
Yeah everyone does that...
Sorry though, I can't help you out here. Besides I don't think forums actually give you the users true IP but I could be wrong so don't quote me on that lol
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
slpctrl
Member
Posts: 945
Location: 2147483647
Joined: 19.04.07
Rank: God |
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create a server.
open notepad
<?php
putenv("TZ=GMT+1"); //Set this to whatever timezone the forum of interest is. Takes some fiddling.
function clean ($var)
{
return htmlspecialchars($var);
}
$ip = clean($_SERVER['REMOTE_ADDR']);
$ref = clean($_SERVER['HTTP_REFERER']);
$time = time();
$readable_time = date("Y\-m\-d\, H\:i");
$entry = "|<u>$time ($readable_time)</u>| <b>IP:</b> $ip, <b>Ref:</b> $ref<br /> \r\n";
$fp = fopen('iplog.html', "a") or die('Cannot open logfile');
fwrite($fp, $entry);
fclose($fp);
###OUTPUT IMAGE###
$file = "imagesource.gif";
$fp = fopen($file, "r") or die('Cannot grab image source');
$content = fread($fp, filesize($file));
header("Content-type: image/gif");
echo $content;
fclose($fp);
?>
Then make a .htaccess file in the same folder:
AddHandler application/x-httpd-php .gif
This allows .gif files to process php. Now, simply put a 'imagesource.gif' in the directory and link to the original image (whatever you saved the php under. Remember, save it as a .gif file aswell). Should do the trick, it logs IP adresses of viewers. Very simple really.
Edited by slpctrl on 27-03-08 22:24 |
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
slpctrl
Member
Posts: 945
Location: 2147483647
Joined: 19.04.07
Rank: God |
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Taken down now lol.
Edited by slpctrl on 27-03-08 23:42 |
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
ShapeShifters
Member
Posts: 393
Location: I'm lost...
Joined: 21.12.07
Rank: God |
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that's pretty interesting
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
DigitalFire
Member
Posts: 274
Location: Or perhaps just
Joined: 02.12.06
Rank: HBH Guru |
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slpctrl wrote:
$ip = clean($_SERVER['REMOTE_ADDR']);
Is that necessary?
and yeah, maybe just stick it as your avatar or sig.
unless you want a specific IP, then link somebody like "check out this cool image" and put up some random lolcat or who knows.
hmm what kind of defense against this is there? code the forum to search each image for code i guess?
I'll be in it all to watch it burn so carelessly |
 
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
Feralas
Member
Posts: 301
Location: 127.0.0.1
Joined: 25.02.08
Rank: HBH Guru |
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slpctrl wrote:
hmm what kind of defense against this is there? code the forum to search each image for code i guess?
I'd like to know this too.
/-- Ipsa Scientia Potestas Est --\
\-- Knowledge itself is power. --/
To fear death is to limit life.
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
slpctrl
Member
Posts: 945
Location: 2147483647
Joined: 19.04.07
Rank: God |
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Feralas wrote:
slpctrl wrote:
hmm what kind of defense against this is there? code the forum to search each image for code i guess?
I'd like to know this too.
Ahh lol quoted wrong person  anyways, I doubt there's any really, a proxy would disguise the IP it places in the table but you can't prevent an IP from appearing because of the way packets of data are sent to your IP from the server. I can't wrap my head around a way to defend against it anyways.
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
DigitalFire
Member
Posts: 274
Location: Or perhaps just
Joined: 02.12.06
Rank: HBH Guru |
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maybe the forum could copy all images over to its own directory, and display them from there?
I'll be in it all to watch it burn so carelessly |
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
slpctrl
Member
Posts: 945
Location: 2147483647
Joined: 19.04.07
Rank: God |
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DigitalFire wrote:
maybe the forum could copy all images over to its own directory, and display them from there?
Oh, you meant server side? You could, there might be some issues namely images that are drawn in PHP (like the one above) if the images are being drawn from an external image source for other reasons (some are) it wouldn't display anything.
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
DigitalFire
Member
Posts: 274
Location: Or perhaps just
Joined: 02.12.06
Rank: HBH Guru |
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slpctrl wrote:
Oh, you meant server side? You could, there might be some issues namely images that are drawn in PHP (like the one above) if the images are being drawn from an external image source for other reasons (some are) it wouldn't display anything.
Yeah server side image copying. thats true that some things wouldnt work, but it would protect users.
and for userbars that say like "ranked 7 out of 100" or something like that, as long as it requests a new image to copy over, it should keep updated and display properly.
even if the image is drawn in PHP, it still produces a .gif or .png, so are you sure there would be problems?
if there are, then it might just be the price to pay for better security.
have you tried this on HBH? it would seem like this would work on HBH, doesnt it?
I'll be in it all to watch it burn so carelessly
Edited by DigitalFire on 28-03-08 04:32 |
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RE: How can anyone find the IP address or ISP of another member in a forum or website? |
fallingmidget
Banned
Posts: 1138
Location: *.*
Joined: 18.09.07
Rank: God
Warn Level: 100
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or you could just not click on the link to go wherever he wants you to go. i think that would solve the problem.
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