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).
《青春集结号》讲述的是95后军校孩子们的成长生活，“军校生”们在训练、考核、日常生活中相互较劲，训练中的意外丛生、男生女生间的误会不断，让平静的军校因为各路人马的存在波澜不断。成长需要磨难，当新生逐渐适应军校生活，磨合过后又有新的问题不断产生。新兴思想与军校的规定格格不入，是默默忍受还是奋起反抗？爱情的出现，是命运的转折还是墨守成规下的牺牲品？《青春集结号》将展现当代军校生的青春物语，带领观众们感受这一群少男少女成长和蜕变的过程。
虎子看着他们的背影，不满地嘀咕道：小姐总是带着白果，就不带我们。
Updated January 30
CBS电影改篇剧《反恐特警组 S.W.A.T.》改篇自2003年同名电影（那电影其实又改篇自1975年的同名剧集），《反恐特警组》由Sony Pictures TV与CBS TV Studios合作制片，执行制片包括Shawn Ryan﹑Neal H. Morit z﹑ 林诣彬﹑Aaron Rahsaan Thomas。
The code writer and the code reviewer sit together, and the code writer explains the code and related logic he is responsible for in turn according to UC, from the Web layer-> DAO layer;
State machines also have a wide range of uses in game development, especially the logic writing of game AI. The main characters in the game have various states such as walking, attacking, defending, falling and jumping. These states are both interrelated and constrained. For example, if attacked during walking, it will switch from walking state to falling state. In the state of falling, it can neither attack nor defend. Similarly, you cannot switch to the defensive state during the jump, but you can attack. This kind of scenario is very suitable to be described by state machine. The code is as follows:
方略证券公司是在金融界名声卓著的地方性证券机构，总经理唐进洲是一位雄心勃勃的投资家，为人正直，精于业务。但是他犯了一个致命的错误，在自己不知情中，妻子苏可，接收了梁文仪书记的儿子梁宽注册的公司。该公司的资金是梁宽擅自截留的国有资产。
警视厅零系：生活安全科万能咨询室 外出搜查
Amazing Hotels: Life Beyond The Lobby sees Giles Coren and Monica Galetti roll up their sleeves to work alongside staff in some of the most extraordinary hotels across the globe. With wonder, curiosity and humour, they learn tricks of the trade and discover what it takes to offer once-in-a-lifetime experiences in awe-inspiring locations.
漫长的暑假终于结束。欢迎回到帕里奥利！《反禁年华》第 2 季将于 10 月 18 日回归 Netflix！
Crime and Punishment
正要询问，却见营寨里面跑过来一个疤脸少年，顿时大喜，忙迎上前去叫阿水。
行了，你也是明白人，多的话我也不说了，自己看信吧。
Recently, I have made a preliminary investigation on DDOS attacks, and have some superficial understanding of the causes of DDOS attacks and their detection and defense mechanisms. This paper focuses on some thoughts on DDOS attacks in metropolitan area network environment under traditional network architecture.
《作钓方法论》是快乐垂钓频道全新打造的一档垂钓求真类栏目。栏目以广大钓友垂钓过程中所存在的一些约定俗成的技法和理论为基础，进行科学而又周密的户外实验，以验证该技法或道理存在的科学性和合理性。
Chapter 31
2. Select the Drawing Tool Format tab and click the button of the Shape Style Group as shown in the figure.
事业和爱情都不顺心的友川橙花灰心丧气地回到老家的岛上参加母亲的三年忌日，没想到，回家看到的是女装打扮的父亲青治。不仅如此，青治还告诉了她一个惊天大消息：他要和岛上一个叫藤田和生的男人结婚了！而这个男人还有一个上高中的女儿达莉娅。橙花还没从震惊中缓过神来，她那与斯里兰卡女性结婚的弟弟跳了出来，表示全力支持父亲的决定，要好好为他们举办婚事。岛上的人似乎都接受了青治的变化，疑惑不定的橙花在四处打探情况时遇到了达莉娅的同学夏野龙。龙也不喜欢青治的女装，但某一日，龙突然顶着一头粉色的头发，脸上还带着淤青来到了学校，他向达莉娅提议，一起离开这个小岛去追求自由的生活。他们决定一起离家出走，但......
