Check out this project putting a Raspberry Pi to use as a WordPress server. After sharing an initial post discussing the basics of configurartion, he launched a link to it on Hacker News to see how the site would handle heavy usage and probing. Here he do
Your browser doesn't support frames, here's the link http://www.adafruit.com/blog/2012/12/07/raspberry-pi-wordpress-server-survives-testing-piday-raspberrypi-raspberry_pi/