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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.PS: The above articles are published or reprinted by Xingtian Network. Xingtian DDOS: Create the greenest and most stable DDOS attacker! Official website:上官并无得遇良才的欣然。故事讲述未来世界遭遇严重污染，人口出生率骤降，美国部分地区经历血腥革命后建立了男性极权社会Gilead，当权者实行一夫多妻制，女性被当做国有财产，有生育能力的女性称为“女仆”，被迫作为统治阶级的生育工具，女主角Offred就是其中之一，她周旋于统治者、统治者凶残的“妻子”、为统治者打理家务的年长女人“Martha”之间，想在活下去的同时找到自己被夺走的女儿。Zhang Xiaobo blinked after saying these words, After a pause and a sigh, Like every veteran interviewed, these are memories they don't want to mention again. His expression told me more that he must have remembered something more that made him feel heavy-hearted. I saw the details of his facial changes after writing the interview information just collected, and asked:经济不甚繁荣的乌贼川市，名侦探鹈饲杜夫（玉木宏 饰）根本不关心没有报酬的杀人案，更热衷于替有钱家的阔太太寻找丢失的猫猫狗狗。拖欠房租的他偶然看到了一处低廉的招租信息，于是欣然前往，由此结识了新房东二宮朱美（刚力彩芽 饰）。二宫家境优渥，而且热衷于侦探剧，在大学还与一帮同好组成了推理协会。不管杜夫乐不乐意，朱美经常不请自来出现在事务所，并且积极参与到案件的调查中去。大学生户村流平（白石隼也 饰）涉嫌杀害前女友和学长，经鹈饲和朱美时而靠谱时而搞笑的推理侦查得以昭雪，并毛遂自荐要拜在鹈饲门下修行。6? Countermeasures of Network Terminals