Internet Denial of Service Attacks and the Federal Response

Distributed systems based on the client/server model have become increasingly common. In recent months, there has been an increase in the development and use of distributed network sniffers, scanners, and denial-of-service tools. Attacks using these tools can involve a large number of sites simultaneously and be focused to attack one or more victim hosts or networks. Damaged systems include those used in the attack as well as the targeted victim. For the victim, the impact can be extensive. For example, in a denial-of-service attack using distributed technology, the attacked system observes simultaneous attacks from all the nodes at once, flooding the network normally used to communicate and trace the attacks and preventing any legitimate traffic from traversing the network.

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