I have installed Xdebug, and I can confirm from phpinfo() that it is correctly installed. I have taken all the steps given in all of the sites that come up with
The issue wasn't with the configuration of xdebug itself, but how I had NetBeans configured. It was a simple error... basically I was having NetBeans navigate to my /var/www/Application directory, which I hadn't actually set up yet.
Thanks to everyone for their help. I learned a lot about how xdebug works!