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The attack uses the method of sending a large number of domain name resolution requests to the attacked server, Usually the domain name requested to be resolved is randomly generated or does not exist on the network. When the attacked DNS server receives the domain name resolution request, it will first look for whether there is a corresponding cache on the server. If it cannot be found and the domain name cannot be directly resolved by the server, the DNS server will recursively query the domain name information from its upper DNS server. The process of domain name resolution brings a great load to the server. If the number of domain name resolution requests exceeds a certain number per second, the DNS server will time out to resolve domain names.主人公时京（KAI/金钟仁饰）是沉迷网络游戏的典型都市高中生，装作模范生的样子欺骗妈妈，被揭穿后全家搬到乡下生活。在乡下的学校生活的过程中，通过体验乡下的自然以及学校的义工活动，并遇到了女主人公金春（金珍京饰）感受到了生命和爱情的意义。沈悯芮神秘笑道，不知道怎么回事，竟然有人送我首饰，这还有不收的理？你在这里有熟人？不是熟人，就见过一面。The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be covered within the protection scope of the utility model.As shown in the above figure, the server side provides NTP service. Attacker sends an NTP monlist Request to the server, but its source IP address is not its own IP address, but the IP address of the target. After the server receives the request, it will send a Response message to Target (not Attacker). Since Reponse contains 600 time synchronization records with Server, which is much larger than Request and consists of many messages, amplification is realized.当他来到一个叫侯监集的小镇上时，适逢许多武林人物为一枚玄铁令大动干戈。他是个小乞儿的样子，谁也没注意，却因为饥饿太甚，捡了个混战中撒落在地的烧饼吃，意外地得到了玄铁令。正在众人发现，各各威逼利诱之时，玄铁令的主人谢烟客适时赶到。将玄铁令夺回。但这个魔头恪于诺言，必须答应为持令者做一件事，他怕众人教唆这个小乞儿让他干不利于他的事，便连令带人一起携走。不料他想尽办法也不能让石破天求他一件事，石破天告诉他，母亲对他的唯一教诲，便是不管怎样也不能求人。他虽然是乞儿却从不乞讨，别人给他吃他就吃，别人不给，他实在饿了，便拿了就吃，他也不知道这叫偷，也不觉得有什么不对。进取号被召回地球，发现星际联盟内部出现了一股不可阻挡的恐怖势力，威胁到星际舰队的存亡和其所代表的一切。世界危在旦夕。为了解私人恩怨，Kirk舰长率领进取号深涉险境，追捕恐怖份子。我们的英雄开始了一场生死游戏，爱情被考验，友谊被摧毁，为了Kirk唯一剩下的家人——他的船员，不得不做出牺牲。