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3. Reflection and amplification attack (DEDoS) (ack reflection attack, dns amplification attack)Although this kind of attack has appeared for 14 years, its variants can still be seen today. Although technologies that can effectively combat SYN flooding already exist, there is no standard remedy for TCP implementation. You can find different implementations of different solutions to protect the application layer and network layer in today's operating systems and devices. This paper describes this attack in detail and looks forward to and evaluates the anti-SYN flooding methods currently applied to end hosts and network devices.1884 年，周滢跟着养父周老四来到关中，输光钱财的周老四将周滢卖到沈家当丫头。周滢逃跑时躲进吴家东院大少爷吴聘的轿中，颇具商业头脑的周滢得到了吴蔚文的赏识，被获许留在吴家。沈星移怀疑沈家大少爷被吴聘暗杀，出手将其打伤。为救昏迷的吴聘，周滢嫁入吴家冲喜。吴聘身亡，吴家处境困窘，周滢决定要重振吴家东院。 周滢入股陕西织布局，却遭受了朝廷反对洋务运动势力的打击，陕西机器织布局面临重建。为救深陷牢狱的周滢，吴家交出陕西机器织布局的所有股份以及与洋商的生丝合同换得周滢一命。出狱后的周滢重燃斗志建立泾阳布厂，吴家产业再次有了新起色。庚子国难，周滢用自己的方式担起了吴家大业的重振之风，又引领了动荡时局的改革之路。As far as the sub-conclusions are concerned, especially the sub-conclusions (also known as keylinemessage) that directly support the main conclusion, the most important thing is to balance without bias.《爱国者》是由龚朝晖执导，张鲁一、佟丽娅领衔主演的抗战剧。The damage effect is increased over the previous layer.