Domain name backup method and device and readable storage medium

Abstract

The invention provides a domain name backup method and device and a readable storage medium. The domain name backup method is applied to any detection node in a domain name backup system, and comprises the following steps: acquiring key domain names in a preset key domain name list; generating a domain name request data packet corresponding to the key domain name; sending the domain name request data packet to a domain name server according to a preset time period; when an effective response data packet sent by the domain name server is received, analyzing the effective response data packet to obtain domain name information corresponding to the key domain name; and storing the domain name information corresponding to the key domain name. The backup method is used for realizing effective backup of domain names.

Description

technical field [0001] The present application relates to the technical field of the Internet, in particular, to a domain name backup method and device, and a readable storage medium. Background technique [0002] DNS (Domain Name System, Domain Name System) can realize mutual mapping between domain names and IP (Internet Protocol, Internet Protocol) addresses, and is the basis for the normal operation of the Internet. However, the domain name system relies on the domain name resolution of the root server. If the root server cannot provide domain name resolution, Internet access will be paralyzed. [0003] In the prior art, the domain name information is backed up by passively capturing DNS data packets; or the root domain name system based on the alliance blockchain is used to ensure that the Internet can still be accessed normally after the existing domain name system service is paralyzed. [0004] However, in the way of passively capturing DNS data packets, it is first n...

AI Technical Summary

Problems solved by technology

[0004] However, in the way of passively capturing DNS data packets, it is first necessary to select DNS data packets from a large number of captured data packets, and the domain names collected each time are not fixed, so there is a long collection period for effective domain name information and storage of key domain name information. Incomplete and other restrictions

The establishment of the root domain name system based on the consortium blockchain can only meet the reliability access of a specific level of top-level domain name, and cannot guarantee the normal access of subdomain names under the gTLD when the existing DNS service is paralyzed

[0005] Therefore, the reliability of the existing domain name backup method is poor, and the effective backup of the domain name cannot be realized.

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