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(News Survey 20170819 Garbage! Garbage!)When a client accesses a server's web service, The client sends a message to the network card, The tcp/ip stack is part of the kernel, Therefore, the client information is transferred to the web service in user space through the kernel's TCP protocol, At this time, the destination destination of the client message is on the socket (IP: Port) that the web service is listening for. When a web service needs to respond to a client request, The destination destination of the response message sent by the web service is the client, At this time, The IP and port that the web service listens on becomes the origin instead, As we said, Netfilter is the real firewall, It is part of the kernel, Therefore, if we want the firewall to achieve the goal of "fire prevention", You need to set up checkpoints in the kernel. All incoming and outgoing messages have to pass through these checkpoints. After checking, those that meet the release conditions can be released, while those that meet the blocking conditions need to be blocked. As a result, input checkpoints and output checkpoints appear. These checkpoints are not called "checkpoints" but "chains" in iptables.　　地震后，在党和政府的关心下，佑宁受伤的弟妹被送往外地治疗，佑宁和佑男被送到石家庄育红学校。在育红学校里，佑宁遇到了她人生的第一个老师。老师告诉她，她应该学会和别人相处，只有这样，她和她的弟妹才可能拥有一个健康快乐的人生。"Do you mean that these 'dogs' that attacked position 142 are indeed some animals similar in appearance to common dogs?" I said.武媚娘（李丽华）是太宗才人，与高宗（赵雷）有染，被王皇后从感业寺接入宫中，深得高宗宠幸。王皇后因武媚娘诬陷被废，武媚娘被封为皇后。武则天干预政治，迫害政敌上官仪等人，包括自己的亲生儿子李弘和李贤。上官仪的孙女上官婉儿（丁宁）与武则天有仇，但是完全被其个人魅力所折服，成为武则天的心腹。高宗病故，武则天废中宗，自己亲自执政。裴炎（罗维）谋反，被杀，改国号周，称皇帝。武氏晚年，张昌宗和张易之想造反，被武氏的气势吓住。最后，武则天病逝于宝座前。王海涛今年41，他的话只能听一半，可能还有点多，这是他前妻李莹对他的评价。王海涛的家庭是重组家庭，是由继父马大爷带着两女一儿(马丽芬、马丽红、马晓军)，母亲带着两儿一女(王海涛、王海兵、王海燕)所组成的。