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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).剧以身在南洋艰苦奋斗的热血儿女在革命精神的指引下，积极为了国内的革命事业出钱出力，最终在革命党人朱瑾(隋俊波 饰)的正确指引下全都积极投身革命事业，为新中国最终的伟大胜利做出了不可磨灭的贡献为内容核心，以黄圣依、佟大为饰演青梅竹马的恋人陶舒燕与简肇庆的凄美的爱情故事为主线。 　　剧中简肇庆从懵懂的少年，到与青梅竹马的恋人陶舒燕生离死别下南洋，而后陶舒燕为爱赴南洋寻简肇庆，正当二人久别重逢喜极而泣之际，却爆出两家祖上的恩怨世仇又使有情人却成劳燕分飞，后经两人情真意笃相思相守的冲破封建牢笼又有情人终成眷属，最终却因误会而演绎了一场罗密欧与朱丽叶的悲剧恋情。影片以克什米尔独立问题为背景，故事说瑞汗Rehan Qadri（阿米尔·可汗饰演）是个恐怖份子，他无处不在，而导游的工作使他遇到盲女祖妮Zooni Ali Beg（卡玖饰演），并且爱上了这位盲女，但他由于有行动就离开了祖妮，在那次爆炸中，祖妮以为瑞汗已经死掉。7年后，瑞汗与祖妮再次见面，还见到自己的儿子小瑞汗，而瑞汗此次任务是拿回供导弹用的扳机。为了拯救百万印度人民，祖妮选择了杀掉自己的丈夫。使劲咀嚼起来，不等嘴里的吃完咽下。3.1Regarding the signing of the Sino-US tariff treaty, Aban also added details to the readers. It was precisely because of the administrative disorder of the National Government that the US Government offered to return the tariff autonomy to China, but it was mistakenly put by the relevant departments for 18 months and was not known by the senior officials. It was not until Song Ziwen met with US Minister Mamuri that he realized the existence of the incident and stepped up the signing. Therefore, the Treaty on Sorting out Tariff Relations between China and the United States was signed by Finance Minister Song Ziwen. The new tariff treaties with other big powers were signed by Foreign Minister Wang Zhengting.Then I called the health workers to rescue Zhou Xiaolin, While looking at that thing, After careful identification, Only then did I find that the mouth of this thing is not the kind that ordinary animals open and close up and down. But like a 4-petal 'flower', it has 4 lips, which are arranged centripetally in a way of 2 above and 2 below respectively. When it opens, it also looks like a blooming flower. Its structure is a bit like 'X' in English letters. Moreover, the 4 lips are all densely packed with small fangs, which make people's scalp pins and needles. "Zhao Mingkai said.