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曹参本来打算亲自督办这件事情的，不想有人来报：丞相，汉王急诏。阴森，是的，曾经充满人气和生机的张宅，才几天的工夫，就变得阴森森的。太爱行侠仗义而总被退学、辗转流离的高中生关羽和张飞 ，在被第二十四所学校退学， 号称「二十四校」之际，遇上一名缴不起学费的落魄贵族刘备，与极度耐打的开朗少年马超， 百发百中神射手黄忠，加上不对盘的超美少年赵云，因缘际会齐聚贵族学校东汉书院，共同对抗黄巾高校的侵略。 刘关张三兄弟与银时空的宿命邂逅，五虎将之一的关羽与校花貂蝉的千年一遇，一场制霸天下的争夺之战，就此展开 。上头说是逃兵，就是逃兵。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.