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Highly reliable method and method for updating DNS data

A data update and data technology, applied in the field of network information, can solve problems such as inability to update, inconsistent DNS data, and low reliability, and achieve the effect of ensuring consistency and restoring consistency

Active Publication Date: 2014-03-26
CHINA INTERNET NETWORK INFORMATION CENTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, if some nodes fail to update, while other nodes continue to update, when the failed node recovers, the DNS data of each child node will be inconsistent
Generally, in this case, tools or manual data verification methods are used, but the reliability of this method is not high, and when the DNS data volume is very large, it is impossible to complete it manually

Method used

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  • Highly reliable method and method for updating DNS data
  • Highly reliable method and method for updating DNS data
  • Highly reliable method and method for updating DNS data

Examples

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Embodiment Construction

[0024] The present invention will be described in detail below through specific embodiments and accompanying drawings.

[0025] figure 1 It is a flow chart of the steps of the highly reliable DNS data updating method of this embodiment. First, the DNS authoritative resolution database is monitored, and if the DNS data is updated (that is, changed), the DNS data is incrementally updated to each child node. And monitor the consistency of the DNS data of each node. If the data of each node is inconsistent, the incremental update of the data will be suspended, and the full generation of DNS data will be started, that is, all the data in the DNS authoritative analysis database will be generated into a standard format zone file, and then Send the full amount of generated data to each child node, and restart the DNS incremental data update after the delivery is complete.

[0026] figure 2 It is a schematic diagram of the architecture of the highly reliable DNS data updating syste...

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Abstract

The invention provides a highly reliable method and method for updating DNS data. The method comprises the following steps: monitoring a DNS authority analysis database, judging whether DNS data requires to update, and sending update data to each sub-node; monitoring DNS data of each sub-node and checking the consistency; if the DNS data of each sub-node is inconsistent, generating all data in the DNS authority analysis database into zone files with standard format, and sending the generated data to each sub-node. The system comprises a DNS authority analysis database monitoring module, a node DNS data monitoring module, an operation control module, a DNS data full generation module and a DNS data increment update module. According to the invention, DNS data update validation time and DNS update data consistency are guaranteed by combining full data generation and increment data update.

Description

technical field [0001] The invention belongs to the technical field of network information, and in particular relates to a highly reliable DNS data updating method and system. Background technique [0002] Domain Name System (Domain Name System, DNS) is an important Internet infrastructure, including a distributed database that can map domain names and IP (Internet Protocol, Internet Protocol) addresses to each other, and realize the IP address conversion function that domain names and networks can recognize software system. DNS contains the syntax used to define the host names used on the Internet according to a hierarchical structure, as well as the authorization rules for names, and all the settings that the system needs to make in order to define the correspondence between names and IP addresses. In fact, DNS is a distributed database. It allows local control of various parts of the entire database; at the same time, the entire network can also access the data of each ...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L29/08
Inventor 齐超欧阳万斌肖建芳李洪涛
Owner CHINA INTERNET NETWORK INFORMATION CENTER
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