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Leander Hutton 2016-09-24 01:01:12 -04:00
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17
README Executable file
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phpIPAddress
leander@one-button.org
I wrote this to save the IP address of the client that downloads it.
This was mostly done to overcome having a box on on dynamic IP address that I had to access from the outside world.
It's rather simple, if $save_to_file is set to TRUE the script will save the IP address and hostname to a file. Otherwise it'll just diplsay it in the web browser.
By default this file is called ipaddress.txt and is located in the same directory as the PHP script itself.
The best way to use this is to have the machine who's IP you're trying to keep track of download the script every few minutes.
You'll need to place the script itself on a webserver that is accessible (and preferably pretty reliable) to the cleint machine.
Simply add this to your cleint's crontab:
*/15 * * * * wget -O - -q -t 1 example.com/phpipaddress/index.php >/dev/null 2>&1
You can substitute wget for your favorite http client.

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index.php Executable file
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>PHP External IP Address Finder</title>
</head>
<body>
<?php
// User definable varibales
// Set save_to_file = "TRUE" to write the IP address
// hostname, and date to a text file
// timezone - should be the timezone where the server is located
// filename - text file for storing the IP, hostname and date. By default ipaddress.txt
$save_to_file = "TRUE";
$timezone = 'America/New_York';
$filename = "ipaddress.txt";
$address = $_SERVER['REMOTE_ADDR'];
$hostname = gethostbyaddr($address);
date_default_timezone_set($timezone);
$dateandtime = date(DATE_RFC822);
$writeout = "IP Address: " . $address . "<br>" . "Hostname: " . $hostname . "<br>" . "Last update: " . $dateandtime;
echo $writeout;
if ($save_to_file == "TRUE") {
$ipFileHandler = fopen($filename, 'w') or die("<br>ERROR CREATING FILE. CHECK DIRECTORY PERMISSIONS<br>");
fwrite($ipFileHandler, "IP Address: " . $address . "\n" . "Hostname: " . $hostname . "\n" . "Last update: " . $dateandtime);
fclose($ipFileHandler);
}
?>
</body>
</html>