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Money reward: 850When 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.青天大人，小人冤枉啊。落魄的青年经纪人武大，无意获得了一幅改变其命运的古画。在家传聚宝盆的作用下，四名古代美女：西施、花木兰、妲己和杨玉环，穿越时空现身2018。她们的出现让武大对生活重新燃起希望。于是，开始游说四女成立“舞魅娘”舞蹈团，并参加了一场足以扬名立万的舞蹈大赛——“天下第一舞道会”！四女虽凭借从各自时空带来的技艺开始崭露头角，然而毕竟古今有别，舞蹈大会更是强者如林，劲敌“唯舞独尊”的出现也让几位曾高高在上的绝代佳人初次尝到了失败的滋味。而几位画中人，也开始明白了时代的变化，一方面磨砺着舞技，另一方面也开始经历各自不同的情感生涯。"So, the death rate of this flying insect is quite high, have you been stung? Did your protective gear play a role in resisting their attacks?" I asked.1949年的北京，国民党特务频繁作乱，一场大火烧掉了北平电车厂，让北京公共交通受损。战斗英雄出身的孙光大转业到公安局，与经验丰富但又一身坏习气的旧警察钱有根一起调查此案。在钱有根的帮助下，孙光大破获了一个一个重大的案件；孙光大帮助钱有根解救了赵春花，成立了家庭。钱有根的弟弟钱有财的死在孙光大、钱有根两人心中埋下化不开的误会。孙光大想解开这一切的误会、给钱有财平反，唯有抓住当事人张友一，可张友一异常的狡猾，数次逃过警察的搜捕。最后，孙光大终于抓住了张友一，钱有财的冤屈得到平反。钱有根经历一系列的波折，最终喜欢上了“对头”孙光大的儿子孙卫国，把孙卫国当成了自己的女婿、儿子，并把自己的破案绝学传授给孙卫国。孙光大和钱有根在国庆节的时候，终于把酒言欢、找回了兄弟情。