dns security system and its troubleshooting method

A security system and failure technology, applied in the field of Internet applications, can solve problems such as failure of domain name resolution

Active Publication Date: 2016-04-06
BEIJING QIHOO TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the DNS root node cannot be accessed, all domain name resolution will fail

Method used

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  • dns security system and its troubleshooting method
  • dns security system and its troubleshooting method
  • dns security system and its troubleshooting method

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Embodiment Construction

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] In order to solve the above-mentioned technical problems, an embodiment of the present invention provides a DNS security system, which is used to perform fault-handling disaster recovery processing when the root node structure fails. figure 2 A schematic structural diagram of a DNS security system according to an embodiment of the present invention is shown. see figure 2 , the DNS security system includes at least:

[00...

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Abstract

The invention provides a DNS security system and a fault handling method thereof. The DNS security system includes: at least one client configured to initiate a DNS request; a root node configured to provide authorization information for the DNS request; an authorization information database configured to store all DNS requests and corresponding authorization information in a specified area; a virtual The root node is configured to invoke corresponding authorization information from the authorization information database to provide resolution services for corresponding clients when DNS resolution failure occurs on the root node. The safety and stability of DNS resolution can be improved by adopting the invention.

Description

technical field [0001] The invention relates to the field of Internet applications, in particular to a DNS security system and a fault handling method using the DNS security system. Background technique [0002] DNS is the abbreviation of Domain Name System (Domain Name System), which is a core service of the Internet. As a distributed database that can map domain names and IP addresses to each other, it can make it easier for people to access the Internet without having to remember An IP number string that can be read directly by the machine. [0003] The general structure of the Internet host domain name is: host name. third-level domain name. second-level domain name. top-level domain name. The top-level domain name of the Internet is registered and managed by the Internet Society Domain Name Registration Committee responsible for network address allocation. It also assigns a unique IP address to each host on the Internet. [0004] figure 1 A schematic diagram of the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/06
CPCH04L63/00H04L63/1416H04L63/1458H04L61/4511H04L41/0654H04L41/0677
Inventor 谭晓生齐向东濮灿
Owner BEIJING QIHOO TECH CO LTD
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