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DNS data updating method, system and device

A data update and DNS server technology, applied in the field of data communication, can solve problems such as client service interruption, achieve the effect of reducing labor costs and avoiding network access failures

Inactive Publication Date: 2019-06-04
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the rapid changes of the network, the DNS data stored on the DNS server is not permanent. In the existing network access scenarios, the mapping relationship between domain names and IP addresses changes, resulting in interruption of client services.

Method used

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  • DNS data updating method, system and device
  • DNS data updating method, system and device
  • DNS data updating method, system and device

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] The system architecture and business scenarios described in the embodiments of the present invention are to illustrate the technical solutions of the embodiments of the present invention more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present invention. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the pres...

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Abstract

The embodiment of the invention discloses a DNS (Domain Name System) data updating method, system and equipment, relates to the field of data communication, can simply and efficiently ensure that DNSdata locally cached by a client is latest, and avoids a network access fault caused by the change of a mapping relation between a domain name and an IP (Internet Protocol) address. The method comprises the steps that when a DNS server obtains that local DNS data is changed, a timer is started, and when a DNS request message sent by any client side is received before the timeout time of the timer expires, an additional identifier is added to a DNS response message sent to the client side; Wherein the additional identifier is used for prompting the DNS data on the DNS server to change; And afterreceiving the DNS response message, the client re-initiates a DNS request for locally cached DNS data according to the additional identifier to obtain the latest DNS data.

Description

technical field [0001] The invention belongs to the field of data communication, in particular to a method, system and equipment for updating DNS data Background technique [0002] Domain Name System (DNS), a distributed database on the Internet that maps domain names and IP addresses to each other, enables users to access the Internet more conveniently without having to remember IP numbers that can be directly read by machines. Instead, query the corresponding DNS data on the DNS server through the domain name and obtain the IP address corresponding to the domain name to achieve the purpose of access. This is the positive meaning of the existence of DNS. Due to the rapid changes of the network, the DNS data stored on the DNS server is not permanent. In the existing network access scenarios, the mapping relationship between domain names and IP addresses changes, resulting in interruption of client services. Contents of the invention [0003] Embodiments of the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
Inventor 祝存涛
Owner MAIPU COMM TECH CO LTD
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