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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.《派克式左轮》是一部讲述当代中国留学生在海外求学经历的20集电视连续剧。该剧取材于1992年11月发生在美国某大学的一起震惊世界的“卢刚事件”，该事件的主人公、李政道奖学金获得者卢刚在大学校园制造了一起跨国校园枪杀大案。尹旭点头道：消息先一步送回去，然后先生你也不要多做停留。那青鸾公主立即就会香消玉殒。Conclusion: As the name implies, singleTop, if the current instance is at the top of the current task stack, it will be reused directly to test scenario 1. If the current instance is no longer at the top of the stack, create a new instance, such as Test Scenario 2, because it jumps from FirstActivity to SecondActivity every time. Although the SecondActivity instance already exists at the time of jumping to SecondActivity for the second time, another SecondActivity instance is created because it is not at the top of the stack.本剧以我军积极推进中国特色军事变革，做好军事斗争准备为主题，以华北某部队贴近实战，实行基地化训练改革为背景，以红蓝军对抗演习从有预案的摆练，到不设预案背靠背的对抗，再到远程立体跟踪打击等四次较大规模的演习为线索，深层次触及了部队抓训练与保安全、个人荣誉与国家利益、“练为看”还是“练为战”之间的矛盾和问题，多层次多视角地展示了我军各级将领紧迫的忧患意识和远大的强军之志，讴歌了一批肩负历史使命，勇于探索创新，敢于应对挑战的当代军人英雄群像。回答了中国军人是否有能力打赢未来高科技条件下的局部战争，这一当前广大人民群众共同关注的焦点问题。本剧原名《巴金命案TheBarkingMurders》,因视角专注于案件中逝去的生命而改名。故事讲述真实发生过的埃塞克斯郡巴金区命案,以受害者家属的角度描述StephenPort的一连串犯罪行为,和备受批评的警方调查过程。强奸犯兼连环杀手StephenPort在同志交友网站找寻目标,然后对他们下药及强暴,其中有四人因StephenPort用药过量而死；然而当时头三宗命案明明有着相似性,但警方没有以「连环杀人」的方向调查,故此受害者家属认为警方也得对凶案一再发生而负责。