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DDoS attacks target the TCP/IP infrastructure in the network. These attacks can be divided into three types: one is to exploit a known flaw in the TCP/IP stackBehavioral pattern is an abstraction of dividing responsibilities and algorithms among different objects. Behavior patterns are not only about classes and objects, but also about their interactions. Behavioral patterns can be divided into two types: class behavior patterns and object behavior patterns.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.自己似乎不应该为了争夺私利，从而摒弃李左车的正确意见。小老鼠维兹和白肚皮狐狸本是一对死敌，一场不幸的意外让他们在动物天堂相遇。没了自然本能的驱使，他们成为了最好的朋友，并相约回到尘世后还要和彼此相伴。只是没想到，重生之后，他俩互换了角色……越国君臣对此有种意想不到的兴奋。一个月前，尚真（熊黛林 饰）来到韩国首尔，偶遇了向女友求婚失败的书店老板健宇（立威廉 饰），健宇为人温厚善良，让沉浸在遭受男友背叛的痛苦中的尚真忽然萌生了一个想法：要利用健宇帮自己破坏男友的婚礼。于是，健宇跟随尚真来到中国，回家的尚真暴露出了“野蛮”的一面，对远道而来的国际友人疏于照顾。尚真的表妹永真（冯媛甄 饰）和姐姐一样令男人头疼，担任跆拳道教练的永真班中有一名缺乏男子气概的学员志凯（何炅 饰），志凯对永真仰慕有加，但却时常在永真的拳脚下吃亏。健宇陪伴尚真进行破坏婚礼的准备工作，却在演习中得罪陌生人，而此时，距离婚礼的日期越来越近了……