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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).暑假期间，六十中学在驻军某部的帮助下，举办了一次拥抱大自然的夏令营活动。叶凡、吴浩、葛强三位同学因家长不同意，没有参加上这次活动。于是，他们密谋追赶夏令营并离家出走……该剧记录了广州老城区西关一户姓康的人家，老俩口生有四个儿子，依着老康的如意算盘，未来媳妇应该都是广州本地姑娘，但恰恰相反，三个儿子的意中人却都是来自外地女子，其中一个还是金发碧眼的“鬼妹”。康家原有的生活秩序被打乱了，一个带有新鲜内容和喜剧色彩的家庭生活展现在我们面前：老头子对外来人的固有偏见；二儿媳妇自认为是正宗的广东人，争宠夺势；岭南文化与北方文化的冲撞交锋；两个外来媳妇本身之间的地域性格差别；以及这种特殊的婚姻组合所带出的整个珠三角地区的社会生活新变化，展现了广州正向着更为广阔的国际空间发展。Montenegro: 30,0001977年，搅扰中国人民整整十个年头的文化大革命业已结束。人民的生活重新步上正轨，在这百业待兴之际，中断了多年的高考也得以恢复。他盯着板栗道：你哩？你小时候说。