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也许什么时候，他们也就见怪不怪，习以为常了。The SYN-Flood attack is currently the most common DDoS attack on the network, It is also the most classic denial of service attack. It takes advantage of a defect in the implementation of TCP protocol. By sending a large number of attack messages with forged source addresses to the ports where the network service is located, it may cause the half-open connection queue in the target server to be full, thus preventing other legitimate users from accessing. This kind of attack was discovered as early as 1996, but it still shows great vitality. Many operating systems, even firewalls and routers, cannot effectively defend against this kind of attack, and it is very difficult to trace it because it can easily forge the source address. Its packet characteristics are usually that the source sends a large number of SYN packets and lacks the last handshake ACK reply of the three handshakes.MindManager Frequently Asked Questions小学生顾乐有个事业有成、理性死板的妈叫叶杏；有个不求上进、精通家务的爸叫顾立伟；一家人磕磕绊绊、相濡以沫。直到有天，顾立伟又犯了极不靠谱的错误，导致家庭在接连爆发的冲突中瓦解了。为刺激前妻，顾立伟搭上年轻姑娘沈璐，不想却受到前妻变本加厉的打击；为和前妻再置一口气，顾立伟决定火速再婚。父母的压力、女儿的捣乱、沈璐的哭闹、对妻儿的牵挂、自身不成熟的弱点，无一不成为绊脚石，让顾立伟的再婚布满荆棘。终于，沈璐在拿走公婆的房契后消失无踪。而顾立伟却在绝境中，磨练出了男人的品质。与此同时，“永远正确”的前妻也在热情如火的老同学颠覆下，反思了自己在婚姻中的问题。当身怀六甲的沈璐倦鸟归巢，顾立伟竟以男人的胸襟接纳了她，这深深震颤了沈璐的灵魂。一场情感战争，令人伤痕累累，却也让人领悟了婚姻与爱的真谛。该剧的故事发生在中缅边境的小镇上。嫁到缅甸的中国姑娘罕静，为保卫爱情，拯救家族，机智勇敢地与毒枭展开了血与火的殊死较量。罕静以中国女孩特有的气度、善良、聪慧与爱心，赢得众多缅甸边民的支持，战胜了邪恶。玉辉导演以及男女主角的扮演者宗峰岩、杨雪等演员均表示以很低的酬劳出演该剧，愿为禁毒事业做贡献。故事以爱慕着校园女神「苇月伊织」的平凡高中男生「濑户一贵」为主视角展开——暗恋伊织的一贵总是在脑中进行各种工口妄想，表面上却对伊织很冷淡，在一次契机下两人终于消除误会，彼此的距离逐渐靠近……