Protection method and device for domain name resolution
A protection device and domain name resolution technology, applied in the Internet field, can solve the problems of long time, low efficiency and high cost, and achieve the effect of avoiding serious threats, ensuring usage requirements, and reducing server pressure.
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0029] In the embodiment of the present invention, the execution subject of the protection method is a firewall device with a domain name resolution request flood defense function, which is set between the client and the domain name server in the network architecture to intercept the domain name sent by the client to the domain name server Parse the request message. Such as figure 1 As shown, the network architecture of...
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