This white paper is written to help those concerned about denial-of-service (DoS) attacks, such those recently experienced by e-Bay, Yahoo, Amazon.com and other well-known online companies. The purpose of the paper is to provide executives with an understanding of the problem and a view of the risk management approach their companies can take to bolster Web site defenses, and to provide practitioners with explanations of popular DoS attack methods, and best practices they can implement to protect their sites from becoming easy prey for similar attacks. It also advises how to prepare systems, networks and personnel to recognize and respond to attacks if they do occur, and provides a preview of further security research in this area. Last, and perhaps most importantly, it emphasizes the point that Internet security requires teamwork and attentiveness by all members of the Internet community.
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