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The attacker first completes the three-way handshake to establish the connection, but in the last ACK reply of the three-way handshake, the TCP window size is set to 0, and then a data request is made. When the attack target sends the request result to the attacker, it stops the data transmission when it finds that the TCP window size is 0, and sends out a TCP window detection packet to ask the attacker if the TCP window has been updated. Since the attacker will not update the window size, the attack target will always maintain the TCP connection and wait for the data to be sent, and continuously carry out TCP window size detection. When the number of controlled hosts in the botnet is large, Target's connection table will gradually be exhausted, resulting in denial of service.You can experience the difference between the following names. In fact, it is only the difference between names, and the subtle point is only the pronunciation. But the meaning is not very clear. Curry and Nash are both basketball players and Spielberg is the director.19世纪70年代，两名来自不同阶级的足球运动员努力应对职业和个人双重困境——他们不仅改写了足球史，也永远改变了英格兰。以朝鲜光海君为了逃避被毒杀的危机，便由与其相貌酷似的平民代替了王的身份为主题，讲述光海君在朝鲜历史上消失的那15天里所未人知的故事。由巨星让雷诺《这个杀手不太冷》饰演主角乔是一名资深侦探，是巴黎刑警队的精英，他不惜一切代价，去解决那些最具挑战性的谋杀。由于乔涉及的案件牵涉广泛，且十分复杂血腥，因此警探乔必须和全世界的警探们一样，在家庭和事业中做出鱼与熊掌的选择。全剧在巴黎拍摄，美丽与震撼的巴黎美景及时尚品味也为剧集带来了别样的风情。　　崔秀英饰演的是可爱的中提琴演奏家。