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).
Fourth: We must pay attention to the cost of icebergs when spending money.
话说北宋仁宗年间，出了一位中国历史上最有名的清官。说起他来，可真是家喻户晓，妇孺皆知。关于他和他的开封府的民间传说数不胜数。他就是贴面无私——包青天。
双龙领导的抗联部队在极端困难的条件下以少胜多，沉重打击了日本侵略者的嚣张气焰，也成为了日军的心腹大患。抗联十军一举歼灭并摧毁了日本关东军“七三一”细菌部队的前身——中马城。一九三五年，双龙加入了中国共产党。为此日军尾田部不惜出动重兵对双龙的十军进行围追堵截。由于日军女特务的混入，双龙部队驻地被日军发现，双龙领导的第十军陷入敌人的重重包围之中。面对数十倍的敌人，十军战士拼死顽强奋战，双龙军长与日军战斗到生命的最后一刻，流尽了最后一滴血。
Evidence that readers of Hacker News have compiled shows that many founders of Internet companies also acquire less than 10,000 hours of professional skills. In this book, the data used by Erickson is not the law of 10,000 hours either. Before the age of 18, students engaged in music education spent an average of 3,420 hours on violin training, while excellent violin students practiced an average of 5,301 hours and the most outstanding violin students practiced an average of 7,401 hours.
姜洪武是个没有家没有亲人的劳改释放
新剧《圣女魔咒》获得了CW第二季的续订。
Before seeing Lin Huiyin, Jia Baoyu was full of dissatisfaction. Although a dude like him would not be disrespectful in front of people because of family education, before Lin Huiyin came to him...
即将毕业的大四学生桑无焉梦想成为广播人，在电台做主播助理，并且喜欢一个笔名叫做“一今”的神秘词曲人。桑无焉对偶然遇见的苏念衾一见钟情，后来才发现他竟然是个高冷的视障者。桑无焉如同剥洋葱般剥开苏念衾孤傲冷漠的外壳，直到发现苏念衾正是词曲人“一今”，已然坠入爱河。极力守护爱情的两人，在得来不易的幸福与害怕失去的恐惧中拔河，终因现实的压力和误会而分手。三年后，桑无焉成为广播电台主持人，苏念衾也治好眼睛，承担起家庭责任学习管理企业，两人在不同的人生道路上再次相遇，最终克服困难走到一起 。
时光之轮开始倒转，镜头回到1973年的格林威治村，13岁的汤姆和每个处于这个年龄段的青涩少年一样，正经历着从男孩到男人的尴尬转变。都说父母是孩子的第一任老师，可是汤姆
「东京爱丽丝」讲述租在一起生活的同级生4人的故事。4个人分别是工资基本用在逛街败家，感情世界还有现实距离的主人公・有栖川枫（山本），初出茅庐的漫画家・羽田水穗（トリンドル玲奈）、在銀座画廊工作的大小姐・円城寺小百合（朝比奈彩）和酷酷的心療内科医生・桜川理央（高橋メアリージュン） 。主题歌为chay的「恋はアバンチュール」。
第二季也是10集，2019年播出。
曾经是否相爱已经不再重要，在国家大义面前，自己就是把儿女私情摆在后面，沈悯芮能跟着杨长帆，远比跟着绝大多数人，包括自己都要更好。
故事围绕在一个口号：“个男人终将被两个女人所奴役-老婆及丈母娘”
以1700年代的真实历史事件“水资源私有化”为题材，讲述了王世子与霸占朝鲜八道水资源的强权势力斗争抗衡的故事，是一部融合了政治与爱情元素的历史剧。俞承豪他将在剧中扮演正义果敢，与恶势力对抗的世子李煊；金所炫扮演的是因为父亲的死向世子复仇，却在不知不觉中与世子相爱的聪明少女韩佳恩。
Value 1: Looking for a needle in a haystack, choose the number carefully! Birthday banknotes are selected from many RMB banknotes with the same number. It is difficult to imagine. In addition, more and more people like them, and it is more and more difficult to collect them in recent years. Therefore, early selling and early income become your best choice. Collect it for your relatives and friends and give it to high-end customers! It is your best choice. Birthday gifts send "heart".
爱丽丝眼睛发光，感觉一个全新世界的大门向她敞开。
新剧方面消息，FOX今日已宣布续订《哥谭》和《嘻哈帝国》。《嘻哈帝国》首播收视率3.8（18-49岁），已正式成为这个电视播出季最受欢迎的新剧，踢下了ABC电视网同样是黑人演员挑大梁的罪案剧《逍遥法外》。《嘻哈帝国》第二集收视率更是攀升，达到4.0，仅播出两集就得到续订的好消息，可见其势头。
