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In fact, WCF content has been read very early, and many predecessors in the blog park have written it very well. However, I think I still need to summarize it myself, because only in this way can knowledge be my own, and how well others write it, after you read it, it is actually someone else, so I encourage you to make a few points (for these points, it is also a reminder to yourself):Amplification attack is a special reflection attack. The special feature is that the reflector has the function of amplifying network traffic and is a common technical means in DDoS. Its basic principle is relatively simple. For a C/S service, if the Server-to-Client Response message is larger than the Client-to-Server Request message, the traffic is enlarged. In order to use amplification technology in DDoS, one condition needs to be met, that is, the services provided by Server are based on connectionless protocols such as UDP.Let's take a look at these four chu animals断送西周国运的那位褒姒出身此处。Chasing and Lingyunyue are two dash skills:1949年4月，邓华司令员率领十五兵团挺进雷州半岛，指挥我四十、四十三军找船造船，开展海上适应性训练，组织先遣部队偷渡与琼崖纵队会合。经中央军委命令：我军对海南岛之敌发起全面攻击。韩先楚军长指挥四十军部队冒着敌人的炮火和飞机的狂轰滥炸向敌人的滩头阵地冲击。龙金书副军长率两个团掩护四十三军主力奋勇前进。经过几天激战，两支部队先后登陆成功，随后向敌纵深推进。薛岳调兵遣将，准备趁我登陆部队立足未稳之际，形成对我四十三军的“反包围”态势，一场恶战在即。关键时刻，韩先楚率四十军主力赶到，反将敌人包围，全歼薛岳主力。我四十、四十三军胜利会师，乘胜追击，国民党军势如破竹，全线溃退，薛岳败走台湾。海南岛宣布解放！