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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).$("form"). Bind (Whether you like her or not, Mini Yang's popularity in the entertainment circle is obvious to all. Few domestic artists can compete with it, and the consumption conversion rate is one of the highest. There is nothing wrong with choosing Mini Yang.2周菡撇撇嘴，无奈地接过皮囊举到嘴边，却又停下来，不知想些什么。