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大苞谷急忙大叫道：哎哟。Lins Concubine 08In 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).身处其中，确实有些飘飘然，忘乎所以了。I downloaded an ISO file from my computer to show you that it is not suitable for physical CD-ROM, and it is also possible to browse resources if it is not suitable for CD-ROM!16哈尔是个天赋异禀却有些自命不凡的试飞员。人类从未有谁能成功驾驭过能量戒指的无穷神力，这一事实令绿灯军团内历来有轻视人类的风气。但是哈尔身上散发出的人性也是军团内部其他任何团员所不具备的。所以，哈尔必须将自己的意志力和决心迅速培养出来。惟其如此，哈尔才能够克服恐惧，熟练运用自己拥有的新能力，用勇气、智慧和力量打败派瑞莱克斯，战胜邪恶，拯救地球和人类免受灾难。