I think I'll write something more about this in my blog proper, but for the present, here's a great write-up by Mark O'Neill about web application security, SQL Injection, and the curse of the O'Neills. Thanks to Tony Bowden.
A funny read, via anima.
bsdlinux.png ;)
Update: As it turns out, this is just one illustration in a book called Unix Network Administration Guide for PC Unix-like OS's - Linux, *BSD, etc. Quoting Norikatsu Shigemura, "Its sales point is to contain many cute illustrations, in-depth and maniac descriptions and comments, and talking with girls (called scene)." Sounds like a good read, pity it seems to be in Japanese :)
When we get to buffer and context overflows in the Network Security course, env-overflow and cmd-overflow might come in handy as demonstrations - interesting automated tools for placing shellcode into environment variables or command-line parameters.