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Distributed denial-of-service (DDoS) attacks pose a significant threat to the Internet. Most solutions proposed to-date face scalability problems as the size and speed of the network increase, with no widespread DDoS solution deployed in the industry. PacketScore has been proposed as a proactive DDoS defense scheme, which detects DDoS attacks,(More)
Distributed Denial of Service (DDoS) attacks have been a big threat to the Internet while no effective schemes have been proposed or deployed, leaving the Internet still vulnerable to such attacks. We propose a proactive DDoS defense scheme [Ki04] by having multiple routers form a defense perimeter. They collaboratively detect DDoS attacks, if exist, and(More)
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