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可惜爷爷看不到孙子带给你的好东西了。Step 2: Then connect the iPhone to the USB interface of the computer through the data cable, and then open the latest version of iTunes tool already installed on the computer.想了想后，陈启说道。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.还是不要跟人赌气斗胜了。咱们家好歹地主啊，还用考虑钱？杨长帆对媳妇的态度非常不满，咱得赶紧败家败起来啊，耸什么。