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The 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.Finally, the official data also said that Naruto's six immortals model has been used perfectly, which is not worse than the high wind transmission.通过昆仑道人的口述，吕馨也知道了这五个恶人的江湖称号和名字。　　地震夺走了佑宁父母的生命，使二妹佑杰变成了一名高位截瘫病人，还给她留下了一个在地震废墟上出生的小妹，十三岁的佑宁，一夜之间变成了这个由五个孤儿组成的家庭的家长。Below the line has always been the main position of Osaka Weaving House. For a long time, the main task of Sakamoto Tmall Flagship Store has been to use the "online special fund" with beautiful prices to let customers experience the products, create brand impression, and then drain them to offline stores./wrath