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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).讲述了麻石老街上第二、三代住户赵钱孙李四家的生活故事。阴差阳错之间，打算开拍新电影的顾维邦结识了孟思凡，两人在丽宫电影院遇见，准备拍摄一部以戏院为背景的惊悚爱情电影。电影前期准备完毕，剧组准备在丽宫电影院开机，这一家电影院正是传说中的灵异剧院。故事舞台在21世纪中期的东京，那时东京已经因为温暖化而被密林所覆盖，被骤雨与恐怖的热带蚊所威胁的人们建起了以希腊巨神阿特拉斯命名的高塔移迁到了空中。但是并不是所有的人类都拥有这样的福利，贫困的人们仍然得留在地面与种种危机为邻过着艰辛的生活。摆在刚从少年教养院出来的少女面前的，是一大片危险的密林以及与个性各异的同伴一同参与进以性命做赌注的战斗的命运……郑武在心中想着这个玉罗刹到底是谁。一个男人无法克服自己的个人不安全感，导致他对任何事情都产生怀疑，而这也给他的妻子和儿子带来了极大困扰....黎章气坏了：比我深？我从娘胎就跟妹妹在一起了，还能被他比下去？胡钧见他脸色不好，心情十分舒畅，对林聪谆谆告诫道：林兄弟，我跟你说。