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Distributed defense of DDoS (Distributed Denial of Service) attack has been extensively researched in recent years and control-based defense is a hopeful way. However, existed methods only deal with bandwidth protection. The paper takes defense of DDoS flood as a kind of Processing and Bandwidth Resources allocation and solves it using control theory. Our defense mechanism FFDRF (Feedback Filtering...
A novel packet marking scheme Is proposed to defend against network or bandwidth DDoS attacks, especially where malicious packets do not target the victim directly. A recent study shows that packet-level symmetry exists in legitimate Internet traffic while malicious flooding traffic often exhibits packet asymmetry. Our scheme utilizes the packet asymmetry to differentiate malicious and legitimate...
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