At the command prompt, execute tcpdump $-$i eth$0$ port $80$

$-$w yourname$\_$capture$\_$S$2,$ replacing yourname with your own name, to start capturing

traffic on this machine and saving the results to a file named yourname$\_$capture$\_$S$2.$

Tcpdump will listen on interface $(-$i$)$ eth$0$ and monitor port $80($HTTP$)$ while writing $(-$w$)$ all

activity that communicates on that port into a specified file, yourname$\_$capture$\_$S$2.$