Setting up a firewall, fixing a slow computer, Linus Tovalds (developer of Linux kernel), origin of nerds, test for nerdiness, solar powered laptops, Pleo (robotic pet dinosaur), Pentagon email hacked, best and worst ISPs, and most hated words on the Internet. This show originally aired on Saturday, June 23, 2007, at 9:00 AM EST on Washington Post Radio (WTWP) Radio.