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Domain name resolution method and device

A domain name resolution and domain name technology, applied in the field of network communication, can solve the problems of increasing the pressure of gateway DNS proxy equipment and wasting bandwidth, and achieve the effect of reducing pressure and bandwidth waste.

Active Publication Date: 2022-01-28
HANGZHOU DPTECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, this application provides a domain name resolution method and device to solve the problem of bandwidth waste and increased pressure on gateway DNS proxy equipment

Method used

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  • Domain name resolution method and device
  • Domain name resolution method and device

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Embodiment Construction

[0020] Reference will now be made in detail to the exemplary embodiments, 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 exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0021] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "an...

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Abstract

This application provides a domain name resolution method and device, which are applied to gateway DNS proxy equipment, and the method includes: receiving a DNS request message carrying a domain name sent by a terminal or a downstream DNS server; searching the local domain name and IP address database The domain name; if the domain name is not found in the domain name and IP address database, then determine the first upstream DNS server selected in advance from the connected at least two upstream DNS servers; the first upstream DNS server The IP address of the domain name is carried in the DNS response message and sent to the terminal or the downstream DNS service; or, obtain the IP address corresponding to the domain name from the first upstream DNS server, and obtain the IP address corresponding to the domain name from the first upstream DNS server The acquired IP address is carried in the DNS response message and sent to the terminal or the downstream DNS server. By applying the embodiments of the present application, the waste of bandwidth can be greatly reduced, and the pressure on the DNS proxy device of the gateway can be reduced.

Description

technical field [0001] This application relates to the technical field of network communication, and specifically designs a domain name resolution method and device. Background technique [0002] Domain Name System (Domain Name System, DNS) is a rare distributed database that uses both Transmission Control Protocol (Transmission Control Protocol, TCP) and User Datagram Protocol (User Datagram Protocol, UDP). The mapping relationship of Internet Protocol (Internet Protocol, IP) addresses allows users to access the Internet more conveniently without memorizing complex IP addresses. [0003] The terminal or the downstream DNS server can send a DNS request message to the upstream DNS server through a TCP or UDP connection to obtain the IP address corresponding to the domain name. The gateway DNS proxy device receives the DNS request message sent by the downstream DNS server or terminal, first searches the local domain name and IP address database, if found, directly replies to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/101H04L67/1008
CPCH04L67/1008H04L67/101H04L61/4511H04L67/56
Inventor 赵军
Owner HANGZHOU DPTECH TECH