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3. Secondly, click "Information";可是这屯田分地的事情不是什么人都可以学着照做的，北方诸侯的士兵都在忙着打仗，有几个会有时间出来屯田种地？何况他们的地盘上到处都是战火和兵灾，哪里能像江东这样平静安宁呢？汉国的关中一带似乎可行，只是这前期的投入非常之大。I went through the bullets to sleep with you.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.这是一个关于成长的故事。每一个人都曾经经历过少年青春的年头，那时候的种种第一次都是生命成长的轨迹，刻画出青春的激情、好奇、欢乐……当然也有苦恼和泪水。在那一段淡然流逝的青葱岁月里，如果没有朋友温热的笑声、老师温柔的关爱、亲人温馨的照顾，我们就真的成了名副其实的孤男和寡女。2. Http://www.3dczk.com/5. When the screen direction is switched (whether the vertical screen cuts the horizontal screen or the horizontal screen cuts the vertical screen, it will be called).