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SynFlood attack belongs to one of TCP attacks. SynFlood attack is the most common and harmful attack in Flood class, and it is also one of the oldest attacks. Before understanding SynFlood attack, you can look at the detailed explanation of TCP attack.唐文宗大和初年，进士杜牧偶遇白马寺一瞎眼老僧。老僧赠他一幅迎风自鸣的老僧吹箫图。红，二人一见钟情互为知音，有“春风十里扬州路。卷上珠帘总不如“之概，后又发现小红所吹之箫竟与老僧所吹之箫为雌雄一对，心中惊讶之余，又增对小红亲近之情，终至一夜风流，珠胎暗结。 　　牛僧孺派杜牧进京表面向宦官晋礼，实则寇测宦官王守澄等人动静，以达“清君侧“之目的，这一切，引起了宰相李德裕的猜忌，他派人劫持了小红母女作为人质，胁迫杜牧交出僧孺勾结宦官的证据，杜牧坚不吐实，并在波斯商人拓叶奴的护持下逃出相府，回扬州，追寻小红母女的下落。张良看着刘邦点头，退了回去，眼神之中充满了期盼。本剧是一部描述井上演的学校心理咨询师蓝泽日向，遭遇到男高中生突然不可理解的死亡，追求背后真相的人情悬疑原创剧。原来温暖和南弦曾是一对恋人，由于误会而分手，温暖回来一方面帮助南弦创业，另一方面挽回和南弦的爱情。在经历了冷氏招标案、益众挖角事件、代理商纠纷等事件之后，南弦和温暖不仅迎来了美好的爱情，还携手压制了不良竞争，净化了整个行业，让高科技行业在更加健康的环境下稳步发展。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).忙于事业的王家欣（梁咏琪 饰）与未婚夫（谭耀文 饰）在婚前争执不休，她突然迷茫了自己对爱情的定义，重回到自己少女时期生活过的坪洲，回想起了当年与一名陌生男生（黄又南 饰）发生的美丽邂逅……