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他们去的地方是清南村私塾，周夫子的侄儿在此任塾师，周家也住在学里。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.讲述了“万年课长”失败老爹和前黑社会老大转生为“花美男店长”和“绝世美女”重返人间后引发的一系列故事。重生的他们历经又一轮的人生了解到各类事情的真相，领略了什么才是真正的爱情和幸福，将为观众献上感动与欢乐[4] 。Automatic continuous focusing (AF-C): It is mostly used to shoot moving objects and continuously follow the focus for shooting.Q: How did you start to take part in the Kaggle competition?