中文字幕大香蕉在线看

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.Of the above three stages, the attack is undoubtedly the most important one. For DDOS attacks, when the attack occurs, the best defense measure is to quickly filter the attack packets on the premise of early detection of the attack to ensure the access of legitimate users. At present, for DDOS attacks, security companies mainly adopt traffic cleaning methods. A common flow cleaning architecture is shown in Figure 1.　　「究竟什么是幸福？」两人会做出怎样的选择呢？He has another characteristic, that is, his loud voice. Every time class was over, he was shouting, even the teacher's office could hear him. In the future, when the school radio is bad, please ask Lin Nian to talk about it. The whole world can hear it!尹旭说道：关中乃是四塞之地，建都于此，安全绝对没有问题，可是领土大部分都崤山以动，关中对东方的土地控制力似乎有限。A young woman abandons a choice job at a law firm and her life in New York in an attempt to find love in the unlikely locale of West Covina, California.