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As shown in the above figure, the server side provides NTP service. Attacker sends an NTP monlist Request to the server, but its source IP address is not its own IP address, but the IP address of the target. After the server receives the request, it will send a Response message to Target (not Attacker). Since Reponse contains 600 time synchronization records with Server, which is much larger than Request and consists of many messages, amplification is realized.郑氏和泥鳅姑姑顿时松了口气，相视一笑。 　ABC已续订《逍遥法外》第三季。The detection and defense of DDOS attacks should be considered as a whole system from three different stages before, during and after the attack.《左右不逢源 The Middle》主演Patricia Heaton参演多镜头喜剧《转职卡罗尔 Carol’s Second Act》由Emily Halpern及Sarah Haskins执笔的，剧中讲述女主Carol Chambers（Patricia Heaton饰）为了抚养孩子而不当教师后，现在她令人意外地竟然决定要转职当医生。 其他主演包括Kyle MacLachlan﹑Ito Aghayere﹑Jean-Luc Bilodeau及Sabrina Jalees。靠卖卤蛋为生的少女杜心羽（潘之琳饰）在送外卖时，全部卤蛋被玩世不恭的唐正浩