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青莲、秦涛、田遥，你们也先走。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).表面上Miley Stewart（麦莉·赛勒斯 Miley Cyrus 饰）是一个普通女孩，但在平凡的日常生活以外，她还有一个秘密身份——偶像少女歌星Hannah Montana。知道她身份的只有老爸兼经纪人Robby（比利·雷·赛勒斯 Billy Ray Cyrus 饰）和哥哥Jackson（杰森·厄尔斯 Jason Earles 饰），不过当搬到小镇之后，又多死党Lilly（艾米丽·奥斯蒙特 Emily Osment 饰）和Oliver（米切尔·莫索 Mitchel Musso 饰）。红椒立即大喜，满目放光，加上山芋也跟着要，说他才把手帕子弄丢了，让黄豆表哥把这块帕子给他先用。老童生满头是汗，挤到前面提出一贯钱塞给伙计。娜英热心地讲解着自己负责进行的项目。娜英独自一人工作到很晚，把好友兼公司同事石顺，还有后辈恩善约出来一起去蒸汗房聊天，消磨午夜时光。二十多岁时忙得连桑那浴都没有去过，三十多岁的年纪一头钻进滚烫的蒸汗房热气里，有说不出来的舒服。此时，唯独二十多岁的银善充满活力，正在反反复复认真做着瑜伽动作。