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A domain name system dns resolution method and device

A domain name system and resolution method technology, applied in the field of domain name system resolution methods and devices, can solve the problems of long time for local DNS resolution, inability to define local DNS resolution strategies, etc., and achieves the effects of improving DNS resolution speed and execution efficiency

Active Publication Date: 2011-11-30
BEIJING TOPSEC TECH
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Problems solved by technology

[0010] The present invention provides a DNS resolution method and device to solve the problems in the prior art that the local DNS resolution time is long and complex local DNS resolution strategies cannot be defined

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  • A domain name system dns resolution method and device
  • A domain name system dns resolution method and device
  • A domain name system dns resolution method and device

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Embodiment Construction

[0025] In order to solve the problems in the prior art that local DNS resolution takes a long time and complex local DNS resolution strategies cannot be defined, the present invention provides a DNS resolution method and device, that is, a method for realizing local DNS resolution in an enterprise internal network Technical solutions. The technical solution filters the local DNS resolution request packet through the network data filtering module, and forwards the request data conforming to the local DNS resolution policy to the local DNS resolution module. After receiving the forwarded DNS resolution request data, the local DNS resolution module directly writes the resolution result back to the operating system to complete the DNS resolution process. If the DNS request data does not conform to the local DNS resolution policy, the network data filtering module directly sends this data to the underlying module of the operating system, thereby improving the resolution speed of no...

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Abstract

The invention discloses a DNS resolution method and device. The method includes: the network data filtering module filters the local DNS resolution request packet, forwards the local DNS resolution request packet conforming to the preset local DNS resolution policy to the local DNS resolution module, and forwards the local DNS resolution request packet that does not conform to the local DNS resolution policy to the local DNS resolution module. The local DNS resolution request packet is forwarded to the underlying module of the operating system; the local DNS resolution module analyzes the received local DNS resolution request packet, obtains the resolution result, and carries the resolution result in the local DNS resolution response packet and sends it to the operating system Low-level modules. By means of the technical scheme of the present invention, complex DNS resolution strategies can be realized.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a domain name system (Domain Name System, referred to as DNS for short) analysis method and device. Background technique [0002] In a computer communication network, there is a one-to-one or Many-to-one mapping relationship. Users usually use easy-to-remember domain names to access computers on the network, but IP addresses must be used for data communication between computers. Therefore, there needs to be a service system that provides domain name to IP address conversion for users in the communication network, and the service system is called domain name resolution system or DNS. The host that provides this conversion service for users is called a DNS server. The process of converting a domain name to an IP address is called DNS resolution or address resolution. [0003] Take a user accessing Baidu (www.baidu.com) through the Internet (Internet) as an example: w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
Inventor 何超申锟铠罗元邓辉
Owner BEIJING TOPSEC TECH
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