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For spoofing attacks, the first thing to consider is to choose the address. For the attack to succeed, the host on the spoofed IP address must not respond to any SYN-ACK packets sent to them. A very simple method that an attacker can use is to disguise only one source IP address, and this IP address will not respond to SYN-ACK packets, perhaps because there is no host on this IP address at all, or because some configuration has been made to the address or network properties of the host. Another option is to disguise many source addresses, and attackers will assume that hosts on some of these disguised addresses will not respond to SYN-ACK packets. To implement this method, you need to recycle the addresses on the list of source IP addresses that the server wants to connect to, or make the same modifications to hosts in a subnet.科技罪案组高级督察司徒忠（杨明饰）、督察萧美婷（陈晓华饰）在工作上亦师亦友，屡破各种电话、网络、科技骗案；司徒忠在侦查一宗网上情缘案件的过程中，重遇前度女友张慧（高海宁饰），碰巧她与丈夫沈子浩（黄祥兴饰）关系破裂，司徒忠与张慧爱火得以重燃……美婷及后误令家人被骗财，情绪大受打击，幸得司徒忠从旁扶持，重新站起。与此同時，伦敦金骗案闹得满城风雨，而子浩与张慧亦牵连其中，危机四伏；骗案其实由势力庞大的集团控制，幕后主脑更是欺骗美婷家人的匪徒……司徒忠与美婷携手并肩，誓要将骗徒绳之以法。《破茧》是由李京东任总编剧、总导演，马逸腾执导，张耀、楚月领衔主演，马可特别出演，董琦、兰海蒙、黄勐、杨诚诚、扈天翼、梁志港主演的都市悬疑探案剧。其理由在于对手。香港九龙区旺角混混阿杰（刘德华）做事利落重情义，颇有老大风范，为了照顾做事冲动又好面子的小弟乌蝇（张学友），他不停地在各种大小麻烦中周旋，甚至不惜为乌蝇与黑道狠角色（万梓良）结仇。《黑夏》围绕灾难事件的幸存者们展开，为了到达一个军事疏散点，他们与僵尸展开激烈厮杀，甚至不惜彼此对抗。杰米·金饰演一位与女儿分离的母亲，她踏上痛苦挣扎的旅程，欲不惜一切代价找回女儿。她与一小群美国难民同行，必须勇敢面对充满敌意的新世界，并在这场发生在夏天的致命僵尸末日中做出残酷决定。卡尔·谢弗和约翰·海姆斯担任创剧人、监制和联合剧集主管。　　陈勇在狱中痛改前非，终于考获特优成绩，开创了自己的未来