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此时的项羽威势无比，谁都不放在眼里。Compared with SYN cache method, SYN? Cookies technology does not need to allocate space at all when receiving a SYN. Because the most basic data that make up the connection state are encoded and compressed into the sequence number bits of SYN-ACK. For a legitimate connection, the server will receive an ACK message segment with a serial number (actually the serial number has been added by 1), then the basic TCB data will be regenerated, and a complete TCB will confirm that the data will be safely instantiated through decompression. This decompression can be successful even under severe attacks, because there is no storage load at all on the host side, only the load that calculates the encoded data into the ACK sequence number. The disadvantage is that not all TCB data can be added to the 32-bit sequence number segment, so some TCP options required for high performance cannot be encoded. Another problem is that such SYN-ACK message segments will not be forwarded (because forwarding requires complete state data).一个身材高挑、打扮有些艳丽的女生说道：馨馨、桃子、小灵，晚上我带你们去参加一个聚会，去不去？杨月姐，什么聚会？一个扎着马尾辫，脸上有些小雀斑的可爱女生，好奇道。现在形势太过危急，他觉得有义务提醒一下韩信。108-115