Fri 22 Feb 2008
Sure there are over 6 million places on the internet to check your IP Address. I’m sure I’ve written this app at least 7-8 times.
But this one is different. No mission creep. Just a plain minimalist way to find out: What is My IP Address?
February 22nd, 2008 at 6:31 pm
Does this provide your true IP even if you are behind an http forward proxy?
February 25th, 2008 at 3:17 pm
If an IP address is behind a proxy sometimes a server will receive the ‘HTTP_X_FORWARDED_FOR’ header which is easy enough to display. But not all proxies pass this info. Also if an IP is behind a NAT, like most machines are these days, then your real-real ip address will not be able to be determined.
I may add a http_x_forwarded_for to the script and display it only if its detected. For now this little script should do the same thing.
February 25th, 2008 at 8:38 pm
Adding that would be useful for people trying to determine if their IP is hidden or not with the HTTP proxy they are trying to use.
One feature of whatismyip.com is a version of the script that is easy to use curl or wget that is easily parsed by shell scripts. (say for dynamically updating your IP)