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How does a CVM defend against cc attacks? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

Cc attack is a common and harmful form of attack on the Internet. For users' cloud servers to prevent CC attacks, some CC prevention measures are recommended here.

Optimize the code

Cache is used as much as possible to store duplicate query contents and reduce the overhead of duplicate data query resources. Reduce the invocation of complex frameworks, reduce unnecessary data requests and processing logic. During the execution of the program, timely release of resources, such as timely closure of mysql connections, timely closure of memcache connections, etc., to reduce the consumption of empty connections.

Means of restriction

Add pre-condition judgment to some programs with high load, feasible judgment methods: must have session information issued by the website to be used (can simply prevent the centralized requests issued by the program); must have correct referer (can effectively prevent embedded code attacks); prohibit some client-side types of requests (such as some typical bad spider features); the same session can only be executed once in a second.

Perfect the log

Keep the access log of the CVM as completely as possible. Log analyzer can identify abnormal access as soon as possible, such as intensive access to a single ip, surge in specific url requests, and so on.

Use of professional protective services

Ddos high defense service is a very reliable CC defense product, which is very effective against fake search crawler attacks, fake browser attacks, dummy attacks and so on. Provide real-time anti-DDoS attacks in the application layer, re-authentication, identity identification, CAPTCHA and other means to accurately identify malicious and real visitors, and can defend against website-like CC and game-like CC attacks.

This is the answer to the question about how the CVM can defend against cc attacks. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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