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4. Ships engaged in dredging or underwater operations shall display the lights and types specified in subparagraphs (1), (2) and (3) of paragraph 2 of this Article when their maneuvering capability is limited. In addition, when there is an obstacle, it should also be displayed:2. Distributed Denial of Service is divided into attack network bandwidth resources, attack system resources and attack application resources(Tang Lin, Producer of CCTV Financial Channel "Charming China City")2. Fu Confucian TempleThe packaging of the slow cooking machine is very large, and the delicious food on it makes one's index finger move greatly ~This strategy is mainly implemented by imposing rate limits on scarce resources such as IP and accounts. A typical example of this rate limit is to require the user to resolve the verification code to verify whether he publishes too frequently, as shown above.In this environment, silence has almost become an act of assisting in crimes. Therefore, although CSO people adopt a "non-violent and non-cooperative" attitude towards sharing information, we still try to collect some information through some insider meetings and interviews to understand how security experts originally helped these victimized enterprises to build defense mechanisms. In this way, we have summed up the following tips for readers and friends to deal with DDoS attacks.