4. Denial of Service Attack

1.     What is a DoS attack?

2.     Illustrate how a DoS attack works in general.

3.     Explain how the common tools used for DoS work.

a.      Low Orbit Ion Cannon

b.     XOIC

c.      TFN and TFN2K

d.     Stacheldraht

4.     What are the weaknesses of DoS attacks?

5.     Specific DoS attacks (select only 4 items)

a.      TCP SYN Flood Attack (Micro blocks, SYN cookies, RST cookies, Stack tweaking)

b.     SMURF IP Attack

c.      UDP Flood Attack

d.     ICMP Flood Attack

e.      The Ping of Death

f.       Teardrop Attack

g.     Land Attack

h.     DDoS

6.     Give an example of a real-world DoS attack and discuss briefly.

7.     How to defend against the DoS attacks?