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Method and system for analyzing and verifying domain name

A domain name resolution and domain name resolution request technology, applied in the field of domain name resolution verification, can solve the problems of not being able to know whether DNS resolution has been forwarded, and unable to verify the correctness of authoritative server services in real time, so as to reject unauthorized DNS resolution verification requests , Increase the effect of security encryption

Active Publication Date: 2013-10-09
CHINACACHE INT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention provides a domain name resolution and verification method, which is used to solve the problem in the prior art that it is impossible to verify the correctness of the service of the authoritative server in real time, and it is also impossible to know whether forwarding has occurred during the DNS resolution process

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  • Method and system for analyzing and verifying domain name
  • Method and system for analyzing and verifying domain name
  • Method and system for analyzing and verifying domain name

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Embodiment Construction

[0020] The embodiment of the present invention provides a domain name resolution verification method, the method includes: when the domain name request client forwards the domain name resolution request to the authoritative domain name server through LDNS, obtain the current system time, and use the system time as a variable factor and The IP address of the LDNS is added to the domain name resolution request; the authoritative domain name server resolves the domain name resolution request, obtains the IP address of the LDNS added in the domain name resolution request as the LDNS IP address to be verified, and judges the domain name Whether the source IP address of the resolution request is the same as the LDNS IP address to be verified, if not, it is determined that the domain name resolution request has been forwarded.

[0021] Such as figure 1 As shown, the embodiment of the present invention provides a method for domain name resolution verification, and the specific impleme...

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Abstract

The invention discloses a method and system for analyzing and verifying a domain name, which are applied to the technical field of communications. The method comprises the following steps of: obtaining current system time when a domain name request client end transfers a domain name analyzing request to an authoritative domain name server through a local domain network server (LDNS), and adding the system time as a variable factor and an internet protocol (IP) address of the LDNS into the domain name analyzing request; analyzing the domain name analyzing request by the authoritative domain name server, obtaining the IP address of the LDNS added into the domain name analyzing request as an LDNS IP address to be verified, and judging whether the source IP address of the domain name analyzing request is the same as the LDNS IP address to be verified, if not, determining that transferring of the domain name analyzing request occurs. By applying the method and system provided by the invention, the transferring of LDNS in the process of analyzing request can be verified.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for domain name resolution and verification. Background technique [0002] In the Internet system, an IP (Internet Protocol, Internet Protocol) address is used to identify each terminal, for example, 123.123.123.123. However, when a user terminal accesses a certain server, in order to facilitate memory and identification, it is generally based on the domain name address instead of the IP address. Therefore, DNS (Domain Name System, Domain Name System) is used to realize the conversion between the IP address and the domain name address. In this way, when the user terminal accesses a web page at a certain server, it only needs to input the domain name. [0003] In order to verify the results of DNS resolution, we generally use client software such as dig to send a domain name resolution request to the local domain name system. If the DNS resolution syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 李健松宗劼李孟陈奇
Owner CHINACACHE INT HLDG