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That is to say, a total of false syn messages will occupy the TCP preparation queue for 63s, while the semi-connected queue defaults to 1024, which is different by system default and can be viewed by cat/proc/sys/net/ipv4/tcp_max_syn_backlog c. That is to say, sending 200 fake syn packets per second without any protection is enough to burst the semi-connection queue, thus preventing the real connection from being established and responding to normal requests. The end result is that the server has no time to ignore the normal connection request-denial of service.安倍晴明是一位深受皇帝宠信的阴阳师，却一直因为来历不名的身世,遭到百官轻视、排挤……虽然如此，晴明凭借高超的法术，和一群朋友的支持，化解了一系列灵异事件……泉州才子陈三(叶青饰)送嫂赴广南,途经潮州,在元宵灯会上巧遇潮州第一美人黄府千金五娘,不惜扮成磨镜师,计破宝镜卖身入府,以追求美娇娘。在林大鼻欲娶五娘,六娘意爱陈三的情节铺陈中,导致陈三协同五娘私奔下策,幸得兄嫂协助,陈三终于名正言顺娶得五娘。二十一世纪的中国，少年小飞和他的朋友们无忧无虑的生活在海滨城市的阳光下。直到一次偶然的事故改变了他的生活，一只号称是马拉松之神的毛毛虫认定少年小飞为马拉松运动的拯救者，必须完成马拉松之环的神秘任务，也只有在一次次的马拉松比赛中取得胜利，才能打败邪恶力量。将信将疑的小飞又遇到两个总在吵架的美女修罗，几个年轻人因为使命的召唤而走向了生命长跑和起跑线，命运将他们推向一次又一次惊心动魄的角逐中。在马拉松运动的竞技中，在正义与邪恶力量的对抗中，几个伙伴终于体会到了自我的价值，朋友的认同，集体的力量，也终于明白的马拉松运动的真谛。本动画片由北京华映星球国际文化发展有限公司制作，在各种历险和比赛中，真诚和执著让伙伴们勇气倍增，黑暗势力也悄然退去。(2) Night shift, overtime as little as possible　　“没有名字的我，没有未来的她”Next, we will enter the code writing phase of the state mode. First, we will define three state classes, namely offLightState, WeakLightState and strongLightState. All three classes have a prototype method buttonWasPressed, which represents the behavior that will occur when the button is pressed in their respective states. The code is as follows: