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}So let's explain the rules of iptables in a common way. There was an analogy before, Each "chain" is a "checkpoint", Every message passing through this "level" must match the rules on this level. If there is a match, The message is processed correspondingly, For example, you and I are like two "messages" at the moment. Both of you and I are going to enter the customs at this moment. But the duke has a life, Only the imposing person can enter the customs, Those who do not meet this requirement are not allowed to enter the customs. So the soldiers guarding the customs followed the "rules" formulated by the duke. I began to look at you and me. In the end, you entered the customs smoothly, and I was rejected. Because you met the standard of "dignity", you were "released", while I did not meet the standard, so I was not released. In fact, "dignity" is a kind of "matching condition", "release" is a kind of "action", and "matching condition" and "action" form the rules.林世荣(卢海鹏)乃黄飞鸿之弟子，因前生作孽太多，暂不能投胎转世，灵魂辗转流落至一所贵族中学。一班中七学生崔文健(莫家尧)、施俊男(陈锦鸿)与曾志星(张锦程)等不满校长廖惠珠(吴浣仪)与训导主任欧阳协成(卢海鹏)狼狈为奸，俭财成性，遂设陷阱戏弄之，岂料令成意外死亡。荣趁机借尸还魂，突然为人师表，闹出连篇笑话，使校园充满生机。正当校园温情洋溢，成灵魂竟重临校园向荣讨回躯体，展开一场灵界大斗法。为了生计，心蕾不得不开始工作，期间受到了很多的委屈。心蕾把新认识的富家子孔彦祥作为了依靠的对象。秦朗渐渐对心蕾产生了感情，而往日的未婚夫尚东也找到了心蕾。秦朗只好将自己的感情藏于心底……Shipments recorded in documents