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小学生滚粗。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).Due to the increasing organizational cost of attacks, some malicious attacks may even become cover activities for larger-scale and more ferocious security threats.这个与众不同的孙悟空，顿时吸引住了杨舟。1938年为使中国空军顺利轰炸日军占领的武汉机场，重庆卫戍区特战队队长欧阳龙带着队员奇袭机场雷达站，虽然胜利完成任务，但特战队遭遇重创。而国民政府对待牺牲和伤残队员的态度，让欧阳龙倍感心寒。加之目睹由国民政府“焦土抗战”导致的长沙大火造成空前灾难，自己的女友也在大火中失踪，更令欧阳龙激愤交加，在被检查出身患肺癌后，他选择了退隐故园。随着国共联合抗战进入到一个新的阶段，欧阳龙投袂而起，决心以有限的生命，为抵御外侮做出最后的贡献。村中一霸“天狼”谢天啸和铁血打手“狗哥”王凯二人厮混长大，整日幻想着有朝一日能出去闯荡江湖。因为天啸遭遇家中变故，天啸和狗哥决定进城闯荡。初来城里，二人就被江湖骗子圈圈摆了一道，后三人不打不相识，结为伙伴，并在圈圈的帮助下走上了棒棒生涯。在做棒棒的同时，天啸和狗哥先后结识了老黄、小渝、祥叔、小阳等形形色色的人物，也在不经意间，天狗二人触碰到码头幕后老板龙二的利益并在几次冲突中与之结下梁子。天狗二人成长的同时，一场以码头为中心的江湖大风暴即将拉开序幕。