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Application layer attacks use more sophisticated mechanisms to achieve hacker targets. Application layer attacks do not use traffic or sessions to flood the network, but slowly deplete resources on the application layer for specific applications/services. Application layer attacks are very effective at low traffic rates. From a protocol point of view, the traffic involved in the attacks may be legitimate. This makes application layer attacks more difficult to detect than other types of DDoS attacks. HTTP flood, DNS dictionary, Slowloris, and so on are examples of application layer attacks.明朝天启年间，山西济县黄庄镇张氏本器铺的少爷张少古生性顽皮，除了念书，其他方面不乏天资，但是他迷上了变戏法。张少古陪刘文才进京赶考，误打误撞讨得魏好贤欢心，跟张少古约定若真中三甲，定给他惊喜。两位主考官为了讨好魏好贤偷偷把张少古和刘文才的考卷调换。歪打正着，张少古被两个昏官以刘文才的身份带进宫去。临走，张少古劝刘文才尽快离开是非之地回家去。经过一番曲折，张少古被皇上钦点为状元，刘文才为第二。随即张少古和刘文才进行殿试，张少古深得皇上欢心。随后又进行了打擂，斗法等环节，张少古均胜出。后来皇上得知张少古假状元之事大怒，要斩首张少古，后被魏好贤求情给救下。皇上让张少古办最后一件事，然后就放他回。童桦和妈妈住在一幢大房子里，懂事的童桦很早就学会独立生活。一个叫濮今熙的女孩子闯入了他的生活，这使童桦极不习惯，他用尽一切办法与今熙斗智斗勇，想迫使其自行离开。但每一次，今熙总能应付自如，让童桦自讨没趣。随着时间的推移，他们慢慢由对立变成理解，开始包容对方，美好的青春故事由此展开新的一页。A friend taught me a method that impressed me deeply. A cloud service provider promised that each host would protect attacks below 5G traffic, and they bought five at one go. The website is set up on one of the hosts, but it is not exposed to the users. The other hosts are mirrored and are used to face the users. DNS will evenly distribute the traffic to the four mirror servers. Once there is an attack, this architecture can prevent 20G of traffic. If there is a bigger attack, then buy more temporary hosts and continuously expand the image.Return null;After the death sentence, Liu Guiduo's parents cried and told reporters, "If only everyone on board could swim like fish."黎章，你快去，快去跟指挥使和副将军说，我不是奸细。