External IP Identification Service
To find your external IP or how the world sees you I setup the simple tool at https://lathama.net/ip/ and to use:
If you want to make your own then here is what the source of mine is. You can do all sorts of fun hacks but simple is best some times.
$ ssh lathama.net "cat public_html/lathama.net/ip/index.php" <?php print $_SERVER["REMOTE_ADDR"];