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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.It is already the highest sales volume in the history of the single title of the card form, and it is still setting new records. After the ice sheet is released, 20 million yuan is also in sight.Netflix宣布一口气续订《女子监狱》第5﹑6﹑7季。3. Reflect server resources, Refers to servers, hosts and other facilities that can be used by hackers to launch reflection attacks. If there are some network services they provide, which do not require authentication and have amplification effect, and are deployed in large quantities on the Internet (such as DNS servers, NTP servers, etc.), they may become network resources that are used to launch DDoS attacks.-_* q2 n: T $j10. The stock is very cheap and has fallen a lot. It is not the reason for you to buy it. It will never be! He may also be cheaper!