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Original address: https://www.jianshu.com/p/9fc41ea941aaAfter the INPUT chain is emptied, there are no rules for the INPUT chain in the filter table, but it can be seen that the default policy of the INPUT chain is ACCEPT, that is, the INPUT chain "releases" all messages sent to the local machine by default, accepts all messages when there are no rules, and releases messages by default when the messages are not matched by any rules.Among them, one of the more common attacks is CC attack. It simply and roughly sends a large number of normal requests, exceeding the maximum capacity of the server and causing downtime. What I encountered was a CC attack. At most, about 20 IP addresses around the world sent requests in turn, with the number of requests per address ranging from 200 to 300 times per second. When I read the log, I felt that those requests poured in like a flood. In the blink of an eye, there were a lot of requests. In a few minutes, the volume of the log file increased by 100MB. To tell the truth, this is only a small attack, but my personal website has no protection, and the server is still shared with others. This kind of traffic immediately goes offline.When it comes to bullying, the only control skill of Blood River is to calm the soul. There is an element that is ignored by most people:　　Kuea很坚强,不管他有多难过,他都想继续前进。杨帆（李佳航饰）、齐战胜（万沛鑫饰）、王小兵（姜寒饰）虽然生长在物资匮乏思想保守的七十年代，但从父母身上继承了质朴善良，执着坚韧的中华精髓。八、九十年代，三兄弟与全中国百姓们一起经历了改革开放浪潮：教育改革，大学不再包分配；体制改革，打破铁饭碗鼓励私营经济；产业改革，技术革新结构调整带来下岗再就业。与此同时，齐战胜的初恋云朵神秘失踪，一直单恋他的关向红却穷追不舍；因现实压力，王小兵和关学青分开；而杨帆在最失落时遇到了俏皮开朗的谭燕菲。个人前途上的迷茫，亲情、爱情里的纠结让三人一度无所适从。但70后是压不垮的一代，对新事物有着无限的渴望，三兄弟从最底层一步步稳扎稳打成长为商界精英。他们用70后特有的包容、反省、知耻而后勇的精神分别找到了自己心灵的归宿 。Our sojourn near over and the balcony covered with our labor, we all felt proud and content. Ms. Ping's brother hinted that we could have a drink during dinner, and deliverably dropped a few kilometers out and back to retrieve two cans of rice wine from the cooking, we each made a separate dish according to our specialty. Later, the table set and a few glasses already