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Well, we've reviewed the concept of rules, And it has been understood that, A rule consists roughly of two logical units, Match conditions and actions, It is useless to say so much, Let's define a rule by hand. Here, we still take the INPUT chain in the filter table as an example, because the filter table is responsible for the "filtering" function, and if all messages sent to the local machine need to be filtered, they will first pass through the INPUT chain (PREROUTING chain has no filtering function), which is very similar to the "entry" scenario we refer to. Therefore, using the INPUT chain in the filter table as an example is helpful for us to understand.　　一次牌局中，咏琪不甘被德华以牌品的问题多次推搪婚约，便咀咒他从此“一世摸烂牌”，跟着同样拜师不成的青云离开了。2018-03-02 10:28:21美剧《裂痕》的幕后阵容推出的新剧，演员阵容也很强大。一个家庭里的故事，当这家中的害群之马回归，而引出的一系列惊悚故事。这是一部以现代人情感故事为题材的连续剧，共分成三个独立的故事单元。《偏不离婚》一剧三个单元所讲述的故事都是以普通家庭生活为切入点，虽然表达的是普通人的情感，但并没有落入传统的情爱纠葛的俗套之中，而是倡导了现代人在家庭生活中的相互理解和真诚关爱。讲述了主角一觉醒来，世界大变。熟悉的高中传授的是魔法，告诉大家要成为一名出色的魔法师。崇尚科学的世界变成了崇尚魔法，偏偏有着一样以学渣看待自己的老师，一样目光异样的同学，一样社会底层挣扎的爸爸，一样纯美却不能走路的非血缘妹妹……