Cheat sheets in general are pretty awesome. I, for one, have five or six of them plastered all around my desk at work, for easy access. vi shortcuts, CIDR notat

Cheat sheets in general are pretty awesome. I, for one, have five or six of them plastered all around my desk at work, for easy access. vi shortcuts, CIDR notation, TCP/IP stack... things that I need to access frequently are most easily read from a simple cheat sheet. This one's going up for sure!