SSH into a machine with a dynamic IP

If you're using my previous method for logging a networks ever-changing public IP to a webserver you control, you can use this simple command to grab the last known IP and SSH into the box that way.

ssh USERNAME@`curl -s http://www.example.com/pong.php`

The backticks, when run in a shell, will execute that command and return the results. In this case, it grabs the pong script, reading the IP address it provides, and the SSH's into it.

Thomas has contributed to dozens of enterprise Node.js services and has worked for a company dedicated to securing Node.js. He has spoken at several conferences on Node.js and JavaScript and is an O'Reilly published author.