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This chapter is from the book

Target Network

Before we start attacking our target network, let's take a look at what we are up against. Obviously, a real attacker going after a real network would only rarely have access to network diagrams; in our case, however, it is enlightening to look at the configuration of the target network, such as the one shown in Figure 2-1.

02fig01.gif

Figure 2-1 Target network.

Our target network is a standard dual-screened subnet with a firewall at the front and a filtering router at the back. The perimeter network (also known as DMZ, demilitarized zone, or screened subnet) has a pretty common setup with a front-end Web server, a back-end database server, and a DMZ domain controller (DC). There is a corporate DC on the back end. The end goal is to take over that DC.

Perhaps the only unusual aspect to this network is the fact that the Web server and the Data Center Domain Controller (DC) are both serving as routers. This is actually an artifact of how this demonstration was constructed. The network was built as virtual machines running in Microsoft Virtual PC 2004. This is to make the network portable enough to run on a single laptop. Had we built this with separate routers, we would have needed three laptops (or two more than we want to carry). To that end, the Web server and Data Center (or DMZ) DC are both serving as routers to reduce the number of host machines needed. However, this somewhat unorthodox configuration has no bearing on what is to come.

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