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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.夏沫和洛熙都是孤儿，少年的他们在养父母家相识，因为童年留在内心的阴影，他们彼此充满戒备和防范。洛熙在夏沫和弟弟参加电视歌唱大赛遇到尴尬状况下为他们解围，两个孩子中间的坚冰在逐渐融化，也逐渐互相吸引。Netflix土耳其原创科幻剧《守护者》第四季解放重庆的最后一次战役打响后，西南特区代区长廖一潭部署渣滓洞白公馆特务和刽子手潜逃、潜伏等有关事宜，并全权负责指挥执行一项代号为C30计划的秘密行动。一直隐蔽在敌人内部、代号叫“山鹰”的地下党员将敌人行动目标通知了地下党后失去联系。刚刚建立的重庆市公安部长刘灿作出了三个重大决定：一是吸收地下党联络员黄菊芳加入公安队伍，尽快联系“山鹰”，二是启用伪警察赵金斗加入刑警队；三是组成敌特人员甄别小组。潜逃人员接二连三的袭击解放军，破坏市政重要设施，公安部损失惨重。绰号叫“猫头鹰”的刽子手，多次化装在市区出现破坏，却几次逃脱。周畅经过千辛万苦，终于把“山鹰”的情报送出，公安部周密部署，最后抓获了全部执行C30计划的刽子手。杨长帆只摇了摇头，摸着弟弟脑袋道：你好好应考，别想我的事。　　这是一部讲述如天秤般摇摆的一位少女命运的故事。9. Enter "" under the command line to see the following results: