title: What's special about 169.254.169.254 IP address for AWS?
body: <p>This IP seems to be running a service that <a href="http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html" rel="noreferrer">provides a lot of useful metadata</a> for my instance, but I'm wondering why <em>169.254.169.254</em>? What's special about that IP address?
  And also wondering if the fact of having that IP occupied by that service I'm missing the chance to connect to a server with that IP on the internet?</p>