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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).The above code: Hero function has 2 parameters, namely name (player name) and teamColor (team color),(3) Firefox Browser supports this event.虞子期道：是的，据说我国使臣和汉国使臣同时到达九江，英布率先接见了汉使随何，两家结盟攻打我们楚国，随即杀了我国使臣表明心迹。Parsing: Examining String Splicing三个男生的加入，让这所女子学校一时间躁动起来，更是让格斗社里以乔安妮为首的所有女生面临前所未有的困难。即将参加团体赛的六个人，经历了种种曲折后，从相互不了解，相互抵触，最终成为了彼此格斗生涯里最亲密的朋友，格子青春路上最重要的伙伴。