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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).千禧一代的企业家德鲁(Drew)和马克斯(Max)通过网络直播，直播那些实际上是精心编排的恶作剧。但他们得到了报应，今天的女演员成为一个真正的恶魔持有船员人质神秘附体。更糟糕的是，被附身的受害者是德鲁的未婚妻莱恩。在全球快速增长的观众面前，这个恶魔让马克斯面对一系列暴力和羞辱性的挑战，旨在惩罚他在网上的伪装。同时，在努力挽救他的生活的爱，德鲁发现恶魔的险恶动机不仅是为了报复，但也暴露了黑暗的秘密，他，马克斯，和莱恩一直相互隐藏。随着时间的推移，在真相被揭露或恶魔迫使他们去见他们的创造者之前，这是一个时间问题。The attacker first forged the address to initiate a SYN request to the server (can I establish a connection?) The server will respond with an ACK + SYN (Yes + Please confirm). The real IP will think that I did not send the request and did not respond. The server does not receive a response and will retry 3-5 times and drop the connection after waiting for a SYN Time (typically 30 seconds-2 minutes).讲述了抗日时期，几个身世坎坷、身份各异的青年走上热血革命道路的传奇故事。该剧是“前进”原班人马打造的一部更加新颖的战争大戏。嘎子、大招，相依为命的两位亲兄弟，一个憨一个傻，分明就是一对活宝。弟弟嘎子性格冲动，常常好心办成坏事；哥哥大招有智力缺陷，却往往能弄巧成拙。日本侵略者血洗揦子村时，全体村民为掩护嘎子和大招，被残忍杀害。仓皇逃难的二人巧遇外甥“狗蛋”——八路军营长赵有亮。誓言为乡亲们报仇的兄弟俩，一心想加入八路军，却遭到赵有亮的拒绝。为了证明自己有能力成为合格的八路军战士，嘎子和大招抓到为寻找妹妹而逃脱国民军的猴子作为“投名状”。最终，他们各自在硝烟战火中历练、成长。该剧希望通过最为真实感的人物塑造以及写实的战争场景，为荧屏增添一段可以长久回味的红色题材好故事。Rubber smooth soft ball: This kind of ball is suitable for people with a certain basketball foundation, but it is not a basketball enthusiast with too strong strength. Due to its good hand feeling, it reduces dribbling pressure and shooting resistance. However, beginners feel stiff and easy to slip with this kind of ball, and easy to get rid of layups.拿眼前来说，若高凡一行人真下了河，会在哪里上岸呢？他叫过大苞谷，跟他商议。