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Cheng Lin Endorsements: 500,000 Baishi Thousand Endorsements Every Two Years: 500,000 Every Three YearsThe message was gray. I tried on two pairs of shoes. The colors matched well and were not abrupt at all.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).After the village“学渣”耿耿中考意外走了狗屎运进入振华高中，入学那天遇见了“学霸”余淮，他们在偶然的机会下相识又成了同桌。进入振华后的生活就如耿耿预期的一样危机重重：高强度的魔鬼军训、摸底考试的沉重打击、上课听不懂、作业做不完……回到家，突然出现的新妈妈齐阿姨和新弟弟也让耿耿一时无法接受。但因为同桌的余淮，一切都变得不同。耿耿和β（蒋年年）、简单成了闺蜜，下课组团一起去厕所，吃饭时一起讨论八卦和暗恋的秘密。除了他们还交到了一群好朋友，有了朋友们的陪伴，让耿耿的高中生活不再孤单。然而高考之后，余淮却消失了——在这乱世生存，想要生存下来，胆识是最为重要的，这一点越王尹旭完全具备。不管采用何种办法来组建，提升骑兵的战斗力，战马始终是不可忽视的基础和重点，不可缺少。