Great book on ns2

Introduction to Network Simulator NS2

Printing on the network

lpstat -a : Lists all available printers
lpr -P <printer_name> <file_name> : Print file
lpq -P <printer_name> : See printer queue
lprm : To cancel a print job
enscript -P <printer_name> -2rhC -f Courier7 <file_name> : Good layout for printing source code

TCP Vegas: New Techniques for Congestion Detection and Avoidance

How to measure TCP congestion window, re-transmission count, ssthresh

http://linuxgazette.net/136/pfeiffer.html