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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).　　金玟锡将与其中的一个女孩子展开爱情线，李有镇代替温流出演工大男，与郑艺恩（韩胜妍 饰）展开爱情线。曾出演《住在我家的男人》李洙赫妹妹的申世辉也将出演该剧。Https://www.jiemian.com/article/2057679.html听说香荽身体无恙，他便放了心，遂给她讲起京城各大世家和王公贵族传出的新闻故事和各方牵扯，以及酒楼茶肆等坊间传言。1986年台湾华视出品的30集武侠电视剧，刘雪华早期作品，刘雪华、李亚明主演。刘雪华在该剧中的一身白衣扮相非常好看，可以说是刘雪华最美的扮相之一，再加上满天飞的镜头令刘雪华看起来更加漂亮。"There are close combat, But that was later, At the beginning, They rush up, Let's fight, Because the speed is too fast, Most of them can't be hit, Only a few machine guns were shot down by strafing. It is too difficult to hit an automatic rifle with a single shot, Fully automatic shooting and uncontrollable, Fortunately, in the end the mines blew them up. I don't even know what they are, However, no one can see that landmines play an important role. In order to be able to withstand the possibility of a similar attack, The company commander sent four comrades to re-mine, We provide cover up there, As a result, they had just finished their cloth and were ready to come back. That is, the time of the front and rear feet, Another batch rushed up below, This time the number is much higher than last time. I took a look at it, It is estimated that there are at least 30, When the reaction comes back, They rushed up to the four comrades, The two sides mingled, Dare not throw grenades, Afraid of bombing one of his own, Shooting is also restricted, Still afraid of accidental injury, With such a delay, three of the four comrades were tackled by those things, and the remaining one was quick in legs and feet. I remember he first shot with his backhand and knocked out the one closest to him, and then he wanted to save people. Besides the company commander, there was also a platoon officer on our side. The platoon officer shouted to death with a broken gong voice, shouting only two words, "come back!" , probably out of instinct plus the role of command, he hesitated for a moment and turned to run back, and he ran back, is to pick up a life, but the other three comrades, born by those things to tear, some bit off the throat, some was torn off the armReiterate the conclusion that this entry has no effect at all. The so-called right above is also not effective. Just pass off this entry directly.