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II. Test SurfaceThe main reason why DDOS attacks are difficult to defend is that there are too many vulnerabilities and attack methods that can be exploited. In the OSI seven-layer network model used in the network data transmission process, basically each layer has protocols that can be exploited by DDOS attacks. According to the different network levels of the protocols used for DDOS attacks, this paper summarizes the currently known DDOS attack types and their defense measures as shown in Table 1-3. For more detailed information on current DDOS attack and defense, please refer to Huawei DDOS attack and defense summary post.抗战时期，怀揣爱国之志的青年高天行立身旧上海，欲凭一己之力抗日救国。高天行在一次行动中结识了行走江湖的任非常，两个年轻人惺惺相惜，结为兄弟，屡次与敌奋战，立下奇功。国民党和日方均想方设法收编二人。正当其时，共产党员江泮的出现，为两个年轻人开启了一盏指路明灯。然而，在各种考验面前，高天行与任非常二人渐行渐远，选择了不同的人生之路。以自我为中心的任非常虽有孔武之力，却终因自私狭隘的胸襟众叛亲离，成为民族罪人，葬送了自己的前程和幸福；而热血青年高天行在江泮的引领下，认清时局，辨明是非，完成了个人身份的转换和成长，走上了革命征程 。到了水里，先游得倒也有几分章法，看起来甚为悦目：他们年纪尚幼，小胳膊腿跟没长骨头似的，上下摆动、扑腾，姿态颇优美。本片根据漫画家古谷实的同名原著改编，并荣获2011年第68届威尼斯电影节最佳新人奖（染谷将太 & 二阶堂富美）该剧讲述了赵喜富（潘长江饰）起初只是一个抠门的小富农，一心只想着如何赚钱、攒钱，但在阴差阳错下当上了村长。赵喜富上任后想方设法解决了郭裕村的各种根深蒂固的“疑难杂症”，并带领着郭裕村的父老乡亲们共同致富，让郭裕村成了名符其实的“小康”村。