香港三级

　　FBI追捕逃犯的资深探员马宏在副总统的授权下成为捉捕小组的主管，他决定逐个击破。另一方面，莎拉的父亲因为林肯这起案件而遭灭口，她开始相信麦克了，并从父亲的遗物那里获得蛛丝马迹；副总统的手下Kellerman 前往捉捕林肯的儿子LJ准备拿他当人质时，将LJ一家都杀死了，而却被LJ意外逃脱；一直帮助林肯的律师掌握到了越来越多的线索……一切阴谋似乎都在慢慢揭开。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.2. The additional natural number damage in unlicensed stunts is invalid.The depth of V-groove of 1.6 mm thick printed board shall be 1/3 of the board thickness on both sides of the board.Figure 16 Number of Local Forgery Source Routers by Province and Operator