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DNS hijacking detection method

A detection method and DNS service technology, applied in electrical components, transmission systems, etc., can solve problems such as lag and whitewashing

Inactive Publication Date: 2016-07-13
成都知道创宇信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems in the existing scheme are: firstly, the list of hijacked IPs needs to be maintained, and it is very lagging; secondly, the IPs in the list of hijacked IPs may need to be laundered

Method used

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although the present invention will be described and illustrated in conjunction with some specific embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, any modification or equivalent replacement made to the present invention shall be included in the scope of the claims of the present invention.

[0018] Prepare a foreign IP that does not enable DNS service query support in advance, and then initiate two standard DNS requests for the same domain name and different targets. Such as figure 2 As shown, a kind of DNS hijacking detection method provided by the present invention comprises the following steps:

[0019] Step 1: Initiate a standard DNS query with an IP that does not have DNS service query support for the domain name abroad. If there is no returned result IP, then dire...

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Abstract

The invention discloses a DNS (Domain Name System) hijacking detection method. The DNS hijacking detection method includes the following steps: the step 1: issuing a standard DNS lookup for an IP, wherein the domain name of the IP does not enable DNS service lookup support abroad; and if a returned result IP does not exist, directly deciding that the domain name is not hijacked; and if a returned result IP exists, performing the step 3; the step 2: performing a standard DNS lookup on the domain name in the step 1 on a local DNS server to obtain a result IP returned by the local DNS; and the step 3: comparing the result IP returned by the server which does not enable the DNS service lookup support abroad with the result IP returned by the local, deciding that the domain name is not hijacked if the two result IPs are identical to each other, and deciding that the domain name is hijacked if the two result IPs are not identical to each other. The DNS hijacking detection method does not need maintenance of a hijacked IP list, and can decide whether the domain name is hijacked by means of comparison of the result IPS after analysis of the two domain names, so that the DNS hijacking detection method is more efficient and accurate.

Description

technical field [0001] The invention relates to the domain name resolution field, in particular to a DNS hijacking detection method. Background technique [0002] DNS (Domain Name System, domain name system) hijacking, also known as domain name hijacking, refers to intercepting domain name resolution requests within the hijacked network range, analyzing the requested domain name, and releasing requests outside the hijacking range, otherwise returning a fake IP address, the effect is Fake URLs that do not respond to or access a specific network. [0003] Such as figure 1 As shown, the existing DNS hijacking detection method is prepared in advance to hijack the IP list that may be returned (abbreviation: hijacked IP list), and then according to the domain name information that needs to be queried, query through the DNS server that is manually configured locally or obtained by DHCP. Obtain the IP of the corresponding domain name. Check whether the obtained IP is in the hijac...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L29/12
CPCH04L63/1466H04L61/4511
Inventor 陈剑
Owner 成都知道创宇信息技术有限公司
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