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The sockstreet attack first completes the tcp three-way handshake the tcp connection is established, but in the last ack reply of the three-way handshake, the attacker sets its tcp window to 0 and then makes a data request. When the target discovers that the TCP window size at the receiving end is 0 when transmitting data, it will stop transmitting data and issue a TCP window probe packet to ask the attacker if its TCP window has been updated. Since the attacker does not change the size of the tcp window, the target will always maintain the tcp connection waiting for data to be sent and continuously carry out window update detection. If the attacker uses a large number of controlled hosts to carry out sockstreet attacks, the target will always maintain a large number of tcp connections and carry out a large number of window update detection, and its tcp connection table will gradually run out.泥鳅点头道：我奶奶也去看戏了。1938年为使中国空军顺利轰炸日军占领的武汉机场，重庆卫戍区特战队队长欧阳龙带着队员奇袭机场雷达站，虽然胜利完成任务，但特战队遭遇重创。而国民政府对待牺牲和伤残队员的态度，让欧阳龙倍感心寒。加之目睹由国民政府“焦土抗战”导致的长沙大火造成空前灾难，自己的女友也在大火中失踪，更令欧阳龙激愤交加，在被检查出身患肺癌后，他选择了退隐故园。随着国共联合抗战进入到一个新的阶段，欧阳龙投袂而起，决心以有限的生命，为抵御外侮做出最后的贡献。黄瓜听了张奶奶的话，神色一滞，跟着就被板栗拉住，也没跟郑氏等人往东院上房去，却往西院书房去了。小编只想说，《寻秦记》这部书太牛了。This chapter talks about the third and fourth categories.