hey prof! hats off to you (white, gray & black) & yr partner in crime.
Ive been going through yr nmap series and find them the most lucid on the subject. You have a great knack of staying on point and delivering pertinent clear concise information.
I loved how you tricked out wireshark color scheme to illuminate the specific packets whizzing by- you did mention you have those presets available for download... just wondering where that is? As i love going through yr lessons at my own pace pausing just when ive got my next aha then tinkering with my system until i can get it to do just that.

anyways gotta get back to scanning.....