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Bao Xuhua et al. "King of Destruction: An in-depth Analysis of DDoS Attacks and Prevention"升上高中的投马与走一郎，到底能否站在甲子园的土地之上——但是我知道那个作者得罪了侠客文化。(2) Purposeful practice is focused屡考不中的秀才杜云腾（陈浩民饰）阴差阳错的被误认成为欢喜县县令，与知晓杜云腾底细的捕快麦亚堂（林子聪饰）上演了一场夺权大战，并与欲卧底在衙门的女山贼曹天娇（林源饰），冒牌神医后人华盈盈，以及自卑的武功高手小强等人组成欢喜县衙。在两种价值观的碰撞之下，杜云腾与麦亚堂斗得难分难舍，从官场斗到情场，两人也在不知不觉间被对方所改变。他们联手破获案件、整顿欢喜县、惩恶扬善铲平恶霸、修建学堂造福百姓，在这过程中他们发现并最终成功地挫败了一场巨大的阴谋。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.