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至于安全问题，自然有苏岸和近卫军一路护送。克里斯蒂安（瑞秋·麦克亚当斯 Rachel McAdams 饰）与下属伊莎贝拉（劳米·拉佩斯 Noomi Rapace 饰）在工作之外还有不少私人接触，然而表面良好的关系之下，克里斯蒂安为获得事业发展不惜剽窃了伊莎贝拉的广告创意，将功劳揽在自己身上，心生罅隙的伊莎贝拉与克里斯蒂安的情人德克（保罗·安德森 Paul Anderson 饰）发生了关系，并试图挽回自己因克里斯蒂安遭受的职业挫折，结果遭到了克里斯蒂安更强烈的羞辱。伊莎贝拉发现克里斯蒂安掌握德克贪污的证据，并欲将之告发，伊莎贝拉随即将证据藏匿。不久，克里斯蒂安在自己家中被害，现场遗留的证据指向伊莎贝拉，然而她是真正的凶手么？陈启连忙接过茶杯，说道。猎户见此情形，便上前牵狗。DDOS attacks mainly occur in the network layer. Its most obvious characteristic is to send a large number of attack packets, consume network bandwidth resources and affect normal users' access. At present, the detection and defense technology for DDOS attacks in the network layer is quite mature, and at the same time, some new attack methods-DDOS attacks in the application layer have emerged. Different from network layer DDOS attacks, application layer DDOS attacks mostly imitate the access behavior of legitimate users and will not generate a large number of attack data packets during data transmission, but they will consume server resources through a large number of database queries and other operations, which is more difficult to detect. According to the different attack modes, DDOS attacks include reflection amplification attacks in addition to ordinary flooding attacks. This type of attack often uses a legitimate server as a reflector, which sends a large number of data packets to the target, thus causing greater harm. At present, DDOS attacks against DNS servers are also common. Attackers often send fake domain names to DNS servers, consuming DNS server resources. At the same time, due to the recursive query mechanism in DNS servers, DDOS attacks against DNS servers have a large impact range.一方面可以制造军事压力，逼迫章邯投降。(3) Reflecting Server Resources