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A method, device and system for processing dns messages

A processing method and technology of DNS server, applied in the field of network communication

Active Publication Date: 2019-06-14
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In view of this, the embodiments of the present invention provide a DNS message processing method, device and system to solve the existing problem of unauthenticated users evading authentication by masquerading as DNS messages in the Web authentication scenario

Method used

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  • A method, device and system for processing dns messages
  • A method, device and system for processing dns messages
  • A method, device and system for processing dns messages

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Embodiment Construction

[0038] Embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0039] Aiming at the existing problem, the embodiment of the present invention provides a DNS message processing method to solve the problem.

[0040] Such as figure 2 As shown, in the embodiment of the present invention, a method for processing a DNS message is proposed, including the following steps,

[0041] S101, obtaining a legal DNS server address;

[0042] S103, receiving a DNS packet sent by an unauthenticated user;

[0043] S105. When the user IP address in the DNS message is not in the pre-configured DNS release address table, send the DNS message to the DNS server according to the DNS server address, so that the DNS server can determine the DNS Whether the packet is a forged...

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Abstract

The invention discloses a DNS message processing method, which comprises the following steps: obtaining a legal DNS server address; receiving a DNS message sent by an unauthenticated user; when the user IP address in the DNS message is not in the DNS release address table When it is correct, the DNS message is sent to the DNS server according to the address of the DNS server, so that the DNS server can determine that the DNS message is a forged DNS message. At the same time, the invention also discloses a DNS message processing device and system. Therefore, the existing problem of unauthenticated users evading authentication by masquerading as DNS packets in a Web authentication scenario can be solved.

Description

technical field [0001] The present invention relates to network communication technology, in particular to a method, device and system for processing DNS messages. Background technique [0002] Web authentication is a web-based authentication. Unauthenticated users enter any URL (Uniform Resource Locator, Uniform Resource Locator) in the address bar of the browser, and its HTTP (Hypertext Transfer Protocol, Hypertext Transfer Protocol) message will be accessed Device intercepted. The access device pretends to be the site that the user expects to visit, and after establishing a TCP (Transmission Control Protocol, Transmission Control Protocol) connection with the user, pushes the pre-set authentication page to the user to achieve online authentication of the user without installing an authentication client end purpose. Such as figure 1 As shown, the complete web authentication process includes the following steps: [0003] S1, after the user's PC starts, it automatically ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/08
CPCH04L61/4511H04L67/568
Inventor 原浩
Owner RUIJIE NETWORKS CO LTD