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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.游一桥（郑少秋 饰）是桌球界当之无愧的天王，然而，某一日，他却突然宣布隐退，然而，游一桥内心里对桌球的热情却没有半点减少。父亲的决定令同样热爱桌球的女儿游加勒（周丽淇 饰）深感不解。一天，游一桥遇见了名为靳子谦（邓健泓 饰）的男子，发现了他身上潜藏的卓越天赋，遂收他为徒，游加勒则顺水推舟的成为了靳子谦的师姐。武警九中队是一支担任押运任务的神秘中队。“问题兵”陶涛凭借拳脚功夫调到九中队后，本想干出点人样子却频频出错，在第一次执行押运旧钞任务中就违规作业受到“卧底”怀疑。好在中队长邵笛并没有看扁他，给了他很多信任。为了考验陶涛，支队长卢林设计了一场押运任务，不曾想陶涛又一次违反纪律，私打了电话。中队长邵笛却得知陶涛父亲得了尿毒症。陶涛的种种表现，引起了银行保卫干事、原武警九中队副中队长赵野的关注。赵野因邵笛一再庇护陶涛进而怀疑邵笛，而他怀疑的方向最终指向了邵笛背后，邵笛的大学同学某地方公司老板项洛阳……为给父亲治病筹钱，陶涛弟弟陶锐被犯罪公子利用设计了一个抢劫储蓄所的高科技软件。陶涛无意间发现了弟弟的作案证据，在弟弟戴孝前来辞行时，他含泪将弟弟送进了派出所。项洛阳为了摆脱债务设计诈保，而标的就是通过银行交付给押运中队的三幅毕加索油画。为了保护标的安全，邵笛带领押运官兵和犯罪分子斗智斗勇，他计划假意让抢劫以为计划获得“成功”，并以足够证据逮捕了赵野，岂料这次抢劫却是一场误会……陶涛一直怀疑女朋友徐　　Justin Hartley 扮演Kevin, 一个英俊且当红的电视演员，有着异常无趣没有终期的单身生活。西安一家制药厂青年女工吴鸿影，面对企业改制，她选择了离别丈夫到深圳“下海”。这位西安下岗女工从一家小酒吧做起，历经风雨，成为叱咤深圳房地产业的女强人。吴鸿影的丈夫王镐京坚守药厂，自强不息，在改革中，被任命为药厂驻深圳销售处经理。他发现，妻子吴鸿影和深圳一家医药公司的董事长沈自中有了恋情。三人由此陷入了情感与道德、婚姻与事业的漩涡。Tourism poverty alleviation, as an important part of the national poverty alleviation strategy, has become a powerful starting point and an important support for poverty alleviation in many regions. Ha Xuesheng, director of the program department of CCTV's financial channel, said that "Charming China City" helped the transformation and development of small and medium-sized cities and brought real value to the cities. The cities participating in "Charming China City" are mainly three or four lines. The program focuses on small and medium-sized cities that are "bred in an inner chamber, with no one knowing her" and gives them "timely help" in publicity and promotion.