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On the one hand, the core components of the network infrastructure have never changed in the past ten years, which makes some discovered and exploited vulnerabilities and some mature attack tools have a long life cycle and are still valid even today. On the other hand, the rapid development of the application of the Internet seven-layer model has diversified the attack targets of DDoS. From the web to DNS, from the three-layer network to the seven-layer application, from the protocol stack to the application App, the endless new products have also given hackers more opportunities and breakthrough points. Moreover, DDoS protection is a project with unequal technology and cost. Often, the construction cost of a business's DDoS defense system is larger than the cost or benefit of the business itself, which makes many start-up companies or small Internet companies unwilling to make more investment.A few minutes later, the loudspeaker was turned off, and I listened to Liu Guiduo shouting at my dormitory on the deck, 'Shan Guoxi, come out!' Shan Guoxi went out.When listing solution options, I also hope you will pay attention to the most important point, that is, concreteness.十万年前，仙界诛仙混战，众神陨落，一本暗藏玄机的《生死天书》落入人间。青年考古学家陆云在一次科考中无意中闯入一间根本无法辨别年代的墓室，至此平静的生活被打破，开始了寻找各种谜团的惊险历程。二十世纪七十年代，黄河岸边的祥符市，一座医院里发生了一件匪夷所思的事情。一名叫吴宜飞的妇产科护士，十月怀胎却不知道胎儿的父亲是谁？在那个年月，未婚先孕可谓“惊世骇俗”。在医院领导和同事们苦口婆心的“帮助”下，吴宜飞誓死不愿说出那个种下“恶果”的男人是谁。当“执迷不悟”的吴宜飞被父母赶出家门无处可去的时候，她投奔了她的同事，也是密友的何美丽。何美丽对吴宜飞未婚先孕深恶痛绝，但是她对生命的热爱使她放弃了自己的“原则”。在医院保卫科追查吴宜飞行踪的过程中，何美丽成了“同案犯”……Disney+新纪录剧《想象工程故事》讲述迪士尼乐园和景点的故事。-Zhao Zhou (Founder of the Book Dismantling Gang)