8.4. Understanding and Defending against Hacker Attacks

You can view the interaction between a hacker and a network administrator in different ways. You can see a harmless game of cat and mouse or a terrorist attack on national security. In either case, a person attempts to break into or crash your system. You, as the network administrator, work at preventing and tracking the attacks.

In the following sections, you will learn about common network attacks and the techniques used to guard against them.

8.4.1. Hacker Tools: Common Network Attacks

Network attacks that are directed by a hacker are called directed attacks. For example, a Win-Nuke packet (generated by the WinNuke utility, discussed later in this chapter) sent by a hacker to a specific ...

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