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靠耍小聪明替人出头的小混混戴小龙为了给重病的母亲筹集医疗费，不得不接下一单极具挑战性的困难任务：以卧底的身份潜入一所学校的喜剧班进行秘密破坏行动。然而在社会上游刃有余的戴小龙来到学校却屡遭碰壁，一群不按套路出牌的同学和一个特立独行的老师让戴小龙陷入了意料之外的囧境，戴小龙的任务迟迟没有完成。在与同学们的朝夕相处中，戴小龙渐渐被他们的真诚打动。最终，他放弃了对喜剧班的破坏行动，也重新选择了自己的人生方向……暗影游戏第一季……The SYN-Flood attack is currently the most common DDoS attack on the network, It is also the most classic denial of service attack. It takes advantage of a defect in the implementation of TCP protocol. By sending a large number of attack messages with forged source addresses to the ports where the network service is located, it may cause the half-open connection queue in the target server to be full, thus preventing other legitimate users from accessing. This kind of attack was discovered as early as 1996, but it still shows great vitality. Many operating systems, even firewalls and routers, cannot effectively defend against this kind of attack, and it is very difficult to trace it because it can easily forge the source address. Its packet characteristics are usually that the source sends a large number of SYN packets and lacks the last handshake ACK reply of the three handshakes.Shanghai!We Young -- EXO & 朴灿烈(EXO) & 吴世勋(EXO)