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摆脱了几大门派的高手，俞莲舟和张翠山一家三口开始赶回武当山。愣了一瞬，才又是拍手笑又是叹，她一激动就忘了规矩，喊道：嗳哟。Http://www.jiemian.com/article/2145181.html结婚对象是「第二个喜欢上的人」的美都，偶遇初恋的有岛，很快两人便进入了W不伦的关系中。有岛的妻子丽华、美都的丈夫渡边也渐渐有所察觉……围绕两对夫妇四位主人公的情感和道德观念展开的「昼颜」式的大胆又现实的故事题材，意想不到的展开，未来将会如何？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.相比普通大众，天启的粉丝应该是所有人中最期待的。