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For backbone networks, the data sent and received by these zombie hosts are real data, which is difficult to distinguish from normal traffic data.2. Specific practices此话一出，众人的表情都有些不自然，目光不禁都落到尹旭脸上。From the perspective of service, DDoS protection is essentially a war in which users are the main body and rely on anti-D protection systems to compete with hackers. In the whole process of data confrontation, service providers often have absolute initiative. Users can base on specific rules of anti-D system, such as traffic type, request frequency, packet characteristics, delay interval between normal services, etc. Based on these rules, users can better resist DDoS of the seven-layer class and reduce the resource overhead of the server on the premise of satisfying the normal service itself. The detailed schematic diagram is as follows:一个人的城市 寻找两个人的温暖 在繁华与孤单的临界 谁来把瞬间温暖的花火幻做永恒 泡芙小姐第二季全情回归 一切让爱做主In the defense measures against DDOS attacks, deployment strategy is also a part that needs to be seriously considered. At present, the more reasonable deployment strategy is: the detection equipment is deployed close to the business host, the source is cleaned, and the bypass deployment is carried out. Attacks are distributed, and defense also needs to consider distributed deployment strategies.