哥也搞蝴蝶谷

Now, let's imagine why these "checkpoints" are called "chains" in iptables. As we know, The purpose of a firewall is to match "rules" for passing messages, Then execute the corresponding Action, So, when the message passes through these checkpoints, You must match the rules on this level, However, there may be more than one rule on this level, But there are many rules, When we put these rules in a chain, A "chain" has been formed. Therefore, we imagine each "checkpoint" as shown in the following figure. In this way, it is more appropriate to call them "chain". Each message passing through this "checkpoint" must match all the rules on this "chain". If there are qualified rules, the corresponding actions of the rules will be executed.咱们斗败了南雀国，还没见识过元国人的厉害，这次就好好跟他们玩玩。　　对于卢卡斯，这只是烦恼的开始，他参加了由马蒂诺先生开设的哲学补习班，而后者将被证实是那位漂亮女子的父亲……The key point is: Look at the yellow oil spots in Fig. 2, which are tar filtered out after heating. That is to say, we smoke iQOS smoke bombs through three checkpoints, filtering tar layer by layer, and finally filtering out smoke with relatively low damage.《环保小精灵》：电视剧《环保小精灵》由义乌欧景国际幼儿园与横店地平线童星影视基地联合打造，剧中的小演员都是经过激烈的海选选拔出来的。在创作拍摄此剧，旨在呼吁社会更多的人关注环保，共同参与到保护环境中去，并通过拍摄电视剧的方式增强孩子们的环保意识。