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In TCP implementation, when receiving the SYN request from the client, the server needs to reply the SYN + ACK packet to the client, and the client also needs to send the confirmation packet to the server. Usually, the initial serial number of the server is calculated by the server according to certain rules or adopts random numbers. However, in SYN cookies, the initial serial number of the server is obtained by hash operation and encryption of the client IP address, client port, server IP address, server port and other security values, which is called cookie. When the server suffers from SYN attack and makes the backlog queue full, the server does not reject the new SYN request, but replies the cookie (SYN serial number of the reply packet) to the client. If it receives the ACK packet from the client, the server subtracts 1 from the ACK serial number of the client to obtain the cookie comparison value, and performs a hash operation on the above elements to see if it is equal to the cookie. If equal, complete the three-way handshake directly (Note: At this time, you don't need to check whether this connection belongs to the backlog queue).一个心怀梦想的70岁老人和一个拥有天赋的23岁少年在艰困的现实中彼此扶持并挑战成为芭蕾舞者。　　隐身将平遥王守护其亡妻德妃尸身不腐的白玉和青芒两颗夜明珠盗走了一颗，还将水云玷污，水云父女欲举发岳霆，反被岳霆诬陷他们父女谋反，平遥王在不知情下受岳震怂恿，将他们父女活活烧死，并诛其九族。用了小葱的方子，胡镇果然有了依仗，当天精神就恢复大半，只剩下身体上的伤势，慢慢用药调治。离开宝库世界的阿里巴巴、马尔吉娜、小芝麻没有停下冒险的脚步，他们根据古籍寻找传说中的所罗门王宝藏，无意中释放出了被封印的魔鬼，魔鬼发誓要报复人类。为了弥补自己的过失，他们踏上了寻找封印瓶，重新封印魔鬼的征途……根据所罗门王的指引，他们来到羊驼王子开发的小岛，在这遇到了 老对手强盗三人组，他们能够打败强盗寻找到封印瓶吗？小伙伴们能够成功封印魔鬼吗？在前方等待他们的又将会是什么呢……该剧根据十四郎同名畅销小说改编，主要讲述了骊国公主燕燕（蒋依依饰）在国破家亡之后，改头换面来到香取山，以覃川（赵露思饰）之名找寻上古灵灯，誓要解救天下百姓。而早在她不知道的时候，上仙傅九云（郑业成饰）已守候了她千年，更将为她的理想舍身成全。