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When the SYN gateway receives the SYN packet from the client, it directly forwards it to the server. After receiving the SYN/ACK packet from the server, the SYN gateway forwards the packet to the client and sends the ACK confirmation packet to the server in the name of the client. At this time, the server enters the connected state from the semi-connected state. When the client confirms the arrival of the packet, it forwards if there is data, otherwise it discards it. In fact, the server has a connection queue in addition to maintaining the semi-connection queue. If SYN attack occurs, the number of connection queues will increase, but the number of connections that the general server can withstand is much larger than the number of semi-connections, so this method can effectively reduce the attack on the server.打从几个小女娃进来，葫芦心就有些乱了。In addition to SYN flooding, some other attacks by disguising the source IP address and connection parameters in TCP established connections are also possible. If an attacker can infer the IP address, TCP port number and legitimate sequence number of both parties, he can destroy the connection by resetting or modifying malicious data. In addition to camouflaging TCP segments, camouflaging ICMP packets can also terminate a TCP connection.不为其他，只为陈启诚心想要弘扬国术。0.3-1.0纽西兰老科学家发明一个名为“天狼星”的三棱镜，它可将人的潜能激发，形成难以置信的超能力。但这项发明很快被当地一黑社会组织盯上，他们袭击实验室，杀害老科学家。危急时刻，天狼星被参加实验的青年金刚（许冠杰 饰）和科学家的女儿莎莉（叶倩文 饰）带出纽西兰，来到香港。苏小鹏从台北来到上海准备接收祖产老房子，消息一出，一贯平静的老房子里顿时风声鹤唳谣言四起，住户都开始打起如意算盘。老房子里一户家中无男人的三口人家，女主人看重女儿学业，为其找来了四川妹子吉祥作补习老师。吉祥一直想摆脱自己身上的泥土味做个真正的上海人，然而无论她怎样努力，老房子里的住户仍当她是乡巴佬。但在苏小鹏眼中，吉祥和其它人一样也是上海人，这令吉祥十分开心，开始以上海人的身份带着苏小鹏深入上海的大街小巷，经过朝夕相处，两人生出真情，却遭遇苏小鹏远在台北的爷爷的阻拦。