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非常喜爱大海的「小日向光」是位外表开朗活泼的少女，她最热爱的就是潜水及奶奶炖的猪骨汤。某天她与来自东京的内向少女「大木双叶」在偶然下相遇，并一同加入潜水社展开活动……一场以自然丰饶的伊豆半岛为舞台，描述少女们透潜水来享受美好日常生活的平凡喜剧就此开演。--How should we defend against this attack? First of all, as users, we try our best to download APP from regular channels and surf the Internet in a civilized manner, and try our best not to make broilers. Secondly, as a service manufacturer, when the server is attacked by DDoS, we try our best to improve the processing capacity of the server. When the processing capacity of our server is greater than that of the attacker, these attacks are nothing to the server. Finally, under normal circumstances, the processing capacity of our server is generally lower than that of the attacker. In view of this situation, there are currently the following methods: 1. Violent methods, such as setting an access frequency threshold, and rejecting when the number of accesses per IP unit time exceeds this threshold; For a certain service, if the instantaneous request is too large, choose to directly refuse to ensure the normal operation of other services; This method may result in normal users not being able to use it. 2. Verification code. In order to prevent normal users from being injured by exposure methods, at present, service providers will send verification codes to "users" when receiving a large number of requests. If it is a real user, it will input verification codes, but if it is a broiler, it will not. Through this method, the real user and the broiler will be distinguished.青鸾公主端正面容，对匍匐在地面无人色的南雀使臣道：简先生请回。小葱忽然喝道：你还想什么？把所有的事都烂在肚子里，好好地娶妻生子，才对得起你爹娘和哥哥。