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/weepIn this example, the policy pattern is used to encapsulate the algorithm. However, in practice, it can be used to encapsulate almost any type of rules, as long as the similarities between different rules are analyzed and abstracted说完，站起身就走。英布的夫人吴梅正抱着孩子在跟前，叮嘱一些照顾孩子的方法和细节。该剧讲述了曾是专业排球运动员的男主角董海星进入大学后，和之前只知道学习不会谈恋爱的女主角韩多韵戏剧性的相识，并相恋的爱情故事。So at the moment, We're on another machine, Use the ping command to send a message to the current machine. As shown in the following figure, the ping command can be responded to, proving that the message sent by the ping command has been normally sent to the host where the firewall is located. The IP address of the machine where the ping command is located is 146, and the IP address of the host currently testing the firewall is 156. We will use this environment to demonstrate the operation of iptables.