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蔡志忠以他生花之笔加上幽默技巧，把老子博大精深的思想表现出来，现再以动画形式，使它更生动传神地重现观众眼前。杨长帆虽然暂时成功，但心下也有疑虑，只是，搞不好这些人还是要逃。Reporter: Why are you blushing?Factory method modes are divided into the following three types:小人想问一句：如此一来，陈华风何必向朝廷投降？他直接把全家杀了再自杀不就完了，或者躲去一个海岛上不回来不是更好？将来还有恶人肯改过向善吗？赵耘和王丞相神情凛然，均道：此言有理。We know that IPTables acts according to rules. Let's talk about rules. Rules are actually predefined conditions for network administrators. Rules are generally defined as "if the packet header meets such conditions, this packet will be processed in this way". The rules are stored in the packet filtering table in kernel space, specifying the source address, destination address, transport protocol (such as TCP, UDP, ICMP), service type (such as HTTP, FTP, and SMTP), and so on. When packets match the rule, iptables processes these packets according to the methods defined by the rule, such as accept, reject and drop. The main task of configuring a firewall is to add, modify, and delete these rules.