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Reset authentication takes advantage of the reliability of TCP protocol, and DDOS protection system responds to syn first. When the protective device receives syn, it responds to syn_ack and sets the Acknowledge number to a specific value (recorded as a cookie). When the real client receives this message and finds that the acknowledgement number is incorrect, it will send a reset message with a sequence number of cookie + 1. The source of the forgery will not have any response. In this way, we can add the real client IP to the white list. ?Increase the Maximum Half Connections尘世里，生死同，一诺重千金失笑道：看呆了？也是，葫芦就跟青木年轻时候一个样。上季结尾Lady Toni那一枪的确打中了Sam，但还不清楚子弹打在哪个部位。Sam不会死，因此不是致命伤。剧组证实，Rick Springfield将在第12季中扮演多集角色Vince Vicente，是Lucifer的宠臣。他是个摇滚明星，但已经在走下坡路，他渴望重拾往日的辉煌……于是他成了Lucifer的肉身容器。剧组还透露，Winchester兄弟的母亲Mary（Samantha Smith）将回归第12季，这会改变该剧的动态关系。Winchester兄弟在没有母亲的环境中长大成人，母亲对他们来说有点神秘。但Mary本质上和他们一样是个恶魔猎人，她将再次展现这一面。但Mary和两个儿子的重聚可能并不快乐，因为Mary在预告片中冷冷地告诉Dean：我从未想要你和Sam干这种事（猎魔）。The emergence of mediators reduces the coupling of individual collections, making it possible to independently change and reuse individual collage classes and mediators