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If a service needs to be public-oriented, it needs to provide a user access interface. These interfaces just give hackers the opportunity to take advantage of them. For example, the TCP/IP protocol handshake defect can be used to consume the link resources of the server, The stateless mechanism of UDP protocol can be used to forge a large number of UDP data packets to block communication channels... It can be said that the world of the Internet has not lacked attack points exploited by DDoS since its birth, from TCP/IP protocol mechanism to CC, DNS and NTP reflection attacks, and what's more, it uses various application vulnerabilities to launch more advanced and accurate attacks.板栗、张杨、葫芦等人欣喜地交换了下目光，总算大苞谷没让他们失望。她们总算相信大苞谷是真的从那条河逃生了。吉纳克萨曼是大学工程系的月亮，被整个校园称为最热的月亮。校园里有这样一句话：没有什么比金老师更火辣的了！有一天，他的女朋友和他分手了，他绝望地分手了。后来他发现那个让他伤心的女孩是法学院学生Bom的表妹。金误以为他和表妹在调情，其实他喜欢金。一年前，金用自己的食物和米饭交换了Bom的午餐盒（因为他不能吃任何辛辣的东西），Bom从大一开始就喜欢上了他。当他们之间的感情越来越深的时候，金能理解Bom的真实意图，并且把Bom看成不仅仅是一个小三吗？　　电视看点不对，板栗和小葱遇上胡钧是运气，不能说倒霉。