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所谓‘名师出高徒，这能耐……嗳哟。When the client SYN packet arrives at the filter gateway, the SYN agent does not forward the SYN packet, but actively replies the SYN/ACK packet to the client in the name of the server. If the client's ACK packet is received, it indicates that this is normal access. At this time, the firewall sends the ACK packet to the server and completes three handshakes. The SYN agent actually replaces the server to deal with SYN attacks. At this time, the filter gateway itself is required to have strong ability to prevent SYN attacks.名噪京师的烤鸭老字号“福聚德”创业于清同治年间。传至民国初年，老掌柜唐德源因年迈多病而退居内室，店业全仗二柜王子西协助两位少掌柜惨淡经营。怎奈两位少爷与鸭子无缘，闹得店铺入不敷出，王子西几次向老掌柜推荐他的换帖兄弟卢孟实来操持店业。生性聪慧的卢孟实立誓要干出一番事业来，以泄人间不平。面对势如垒卵的“福聚德”，他绞尽了脑汁，结果在不长的时间里竟使这三间老屋翻盖起了二层楼。光阴荏苒，十年一晃而过，“福聚德”名噪京华。此时，唐家的两位少爷在流言蜚语的怂恿下，却与卢孟实争起了东主财权，经过一些列纷争之后，精明而无奈的卢孟实明晰人间事理，便离开“福聚德”回山东老家去了……但是他却不知道，“这是他一生中唯一一次也是最后一次婚姻。”Breakfast Type: Western, Chinese