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慌忙低下头，一边在心里大骂。庄谢摇摇头，那玩意哪有小说好看。Some people think that the long-standing tension between regulatory authorities, public departments and financial institutions should at least bear part of the responsibility for network security accidents, because it is precisely because of this contradiction that enterprises often choose to make big things smaller and small things smaller.杨寿全忍俊不禁：何出此言。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). 　CBS已续订《极品老妈》第四季。在他的广告公司破产后，一位负债累累的菲拉特在一次瑜伽静修会上爱上了一位歌手，并加入了她的自我实现之旅。