title: How do I find out what my external IP address is?
body: <p>My computers are sitting behind a router/firewall. How do I programmatically find out what my external IP address is. I can use <a href="http://www.whatsmyip.org/" rel="noreferrer">http://www.whatsmyip.org/</a> for ad-hoc queries, but the TOS don't allow for automated checks. </p>
  
  <p>Any ideas?</p>