A dns analysis method, device and network system

Abstract

The embodiment of the invention discloses a DNS resolution method, device and network system, which relate to the communication field and can simplify the DNS resolution process in the prior art. The method includes that the local domain name server receives the DNS domain name system resolution request sent by the client, wherein the DNS resolution request includes the first domain name and context information; the local domain name server cannot query the first domain name in the custom configuration and the obtained When the context information includes the second domain name, query the IP address corresponding to the second domain name in the context information in the custom configuration; the local domain name server feeds back the DNS resolution response containing the queried IP address to the client . Embodiments of the present invention are used for DNS resolution.

Description

technical field [0001] Embodiments of the present invention relate to the communication field, and in particular to a DNS (English full name: Domain Name System, Chinese: Domain Name System) resolution method, device and network system. Background technique [0002] In the existing network system architecture, when a client requests data content from a network server, it first needs to resolve the domain name requested by the client to an IP (English full name: Internet Protocol, Chinese: Internet Protocol) address to request data content based on the IP address. Specifically, the local domain name server receives the domain name resolution request (DNS request) sent by the client in the local network, recursively queries the upper-level domain name server, resolves the domain name to an IP address and carries it in the DNS response and feeds it back to the client; On the server, some domain names are resolved to other IP addresses through custom configuration, such as the ...

AI Technical Summary

Problems solved by technology

Most of the current local domain name servers are domain name servers that support this kind of custom configuration, but the current web pages generally contain many elements. In order to better support concurrent acquisition of resources, these elements usually come from multiple different domain names. These domain names The domain name of the home page is mostly not under the same top-level domain name; with the revision of the web page, elements from the new domain name may be added

In this way, when performing domain name resolution based on custom configuration, each domain name resolution request corresponds to an IP address. If you need to resolve all these domain names to the same custom IP address, you need to find out all these domain names and add them to the local domain name. In the custom configuration of the server, make these domain names correspond to the same IP address, and then obtain the corresponding IP addresses in the custom configuration through the domain name analysis requests corresponding to these domain names during domain name resolution, which is cumbersome and difficult to maintain

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