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-Installation package slimmed down by 20%谁规定，早上起床就要刷牙洗脸，然后再吃早饭？我们为什么不能早上起床后，再睡一觉，然后再刷牙洗脸、吃早饭……我们也可以晚上吃得饱饱的，然后把早饭给免了……好吧，这是玩笑话。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.“在我们互相爱慕之前！！”民国初年，上海号称「东方冒险家乐园」，各路英雄豪杰云集。当时上海三大亨合力建造叱咤风云的流氓集团，素有「翟金棠（汤镇业饰）贪财，龚啸山（黎耀祥饰）善打，乔傲天（黄秋生饰）会做人」的说法，要成就大业，往往要不择手段。而傲天、啸山、金棠亦历尽大时代的波澜起跌、敌友之间的尔虞我诈。在这时局纷扰的年代，又有谁能彰显出人性的光辉？再者，韩信也是要考验一下蒯彻的水平，韩信的谋主必须要有足够的能耐，现在就是检验的时候。According to the report, in the mayor's competition, it was only a small district, and the green crystal in the league was brushed to more than 200,000 yuan. Moreover, yesterday this person did not make the top 5 lists and brushed to more than 200,000 yuan a night. This is impossible. Name of Report: German Chariot