266 Chapter 11 ■ Denial of Service
- Don’t let all the options overwhelm you. You’re interested in only a few for this exercise.
In the command syntax shown here, you use hping3 to flood SYN packets to port 80 on
I P 19 2.16 8 .1. 2.
Note how logical the syntax is in the hping3 utility. Use what you know as
clues for what a command means or is intended to do. For example, use -p
for port since 80 is a common port, and use –S as a SYN flag indicator using
the context clue of the –flood option.- Next, you’ll execute the command and capture the traffic to see the effects. Notice the
CPU usage of 100% in the Task Manager window. The background Wireshark applica-
tion, which is frozen, has nothing but SYN requests coming in. - Go back to your BackTrack terminal window and terminate the command. Notice how
many packets have been sent out in a short period of time. Are you wondering why
there were no replies?