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眼看就快入秋了，中原战乱不止，战马缺乏。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).第三季反英雄男主Ash Williams（Bruce Campbell）发现自己原来有个女儿Brandy Barr（Arielle Carver-O’Neill），另外虽然上季Ash已经把恶魔打回老家，但本季Ruby与她新朋友来到他面前，警告他黑恶势力仍然存在着。亿万富翁范进宾（徐克 饰）的儿子和儿媳在一场车祸中双双身亡，只留下可怜的孙子小宝贝（温兆宇 饰）陪在身旁，范因此对孙子格外关爱，养成了他任性骄傲的坏毛病。新来的家庭女教师玛丽（潘迎紫 饰）与小宝贝一番大战之后，成为了亲密无间的好朋友。