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英国出身的少年在父母决定的自己的道路上迷路，尽管如此也要面对自己的梦想——。油麻地果栏，龙蛇混杂，肌肉男推着木头车，人车争路，汗水夹杂叫骂声，愈夜愈精采。 失婚过气女星与杀校小学女教师，山穷水尽，竟发现自己是果栏继承人。陈炜为了取回应得利益，在男人堆中施展浑身解数，与果栏霸王斗个你死我活，誓要成为新一代果栏话事人。//Leadership Interview61. X.X.153When 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.　　大騒動となったが、...