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Distributed local DNS system and domain name query method

A DNS query and distributed technology, applied in the field of cloud computing, can solve problems such as insufficient resources, and achieve the effect of reducing dependencies, improving availability, and reducing impact

Active Publication Date: 2020-07-28
JUHAOKAN TECH CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] This application provides a distributed local DNS system and domain name query method to solve the problem of insufficient resources in the traditional DNS system when dealing with burst traffic

Method used

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  • Distributed local DNS system and domain name query method
  • Distributed local DNS system and domain name query method
  • Distributed local DNS system and domain name query method

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Embodiment Construction

[0036] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0037] In the technical solution provided by the present application, the container cloud platform is a container scheduling platform, such as Kubernetes and the like. Through the container cloud platform, an enterprise-level distributed multi-tenant container management platform can be built to realize software development, integration, management, and operation and maintenance. The container cloud platform has the characterist...

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Abstract

The invention provides a distributed local DNS system and a domain name query method. The system comprises a local DNS service and a central DNS service which are deployed on a plurality of nodes. Theserver nodes corresponding to the local DNS service can provide domain name resolution service for the containers on the respective nodes, query response results in the nodes cache after receiving DNS query requests, and the response results are directly returned to the client if the response results are queried; and if the response results are not queried, the central DNS service is queried, soas to obtain the IP address corresponding to the DNS query request through the central DNS service and send the IP address to the client, thereby reducing the dependence of each service on the cloud platform on the platform centralized DNS system. According to the invention, the local DNS service can be automatically configured and automatically switched when a fault occurs, so that the influenceof the fault of the DNS system on the service can be alleviated, and the situation that the upper layer service accesses the basic DNS service across servers can be avoided.

Description

technical field [0001] This application relates to the technical field of cloud computing, in particular to a distributed local DNS system and a domain name query method. Background technique [0002] DNS (Domain Name System, Domain Name System) is a distributed network directory service, mainly used for mutual conversion between domain names and IP addresses, so that clients can query and access specified servers through domain names. The general DNS query method is: the client initiates a domain name query to the (or other public) DNS recursive server provided by the network operator; the DNS recursive server first queries its own cache, and if there is an IP address corresponding to the domain name in the cache, it will notify the client cached results. If there is no IP address corresponding to the domain name in the cache, query other recursive servers or iteratively query the root domain name server to authoritative servers at all levels to obtain the IP address accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/1036H04L67/568
Inventor 刘云冲李希伟矫恒浩张宏波
Owner JUHAOKAN TECH CO LTD
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