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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).The detection of time relay mainly includes contact normal detection, coil detection and coil energization detection.　　富绅孟仕存，年过八十，日子过得富足，但他的家人想在他余下的有限时间里，让他过一次精彩的生日，孟的管家兼得力助手马时法立即暗里招集各大公关公司，为孟安排一次别出心裁的惊喜生日会，其中有份竞投的就是小月，小月接到这单大生意，当然拼尽所有，甚至不惜借钱来预备这次竞投！而另一方面，马时法亦顾及孟老先生年时巳高，身体状况未必一定能抵受过大刺激性的活动，因而亦找来医生周谦作为评估。终于来到提交建议书的当日，小月信心满怀，心想一本剧改编自柯南‧道尔推理名作「夏洛克」。原作中许多叙述不多的事件，本次的月9将聚焦于这些事件上并进行改编，以东京奥运前一年的东京为舞台，「颜面最强、内面最狂」的双人组将带给各位怎么样的化学反应，敬请期待！《母子连心》主要讲述了一对母子二十多年来的情感纠葛——儿找母、母寻子的故事。折射出当今社会一些人在金钱和利益的驱动下失去对社会的责任感、家庭的温暖以及亲人的关爱。吕雉已经说的很清楚，将来刘盈是要向汉王称臣的。