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DNS behavior processing method, device and system

A processing device and processing method technology, applied in transmission systems, electrical components, etc., can solve problems such as attacks

Active Publication Date: 2014-07-30
BEIJING QIHOO TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the development of the system and the continuous improvement of hardware, the UDP packets that can be sent by a single machine have been greatly improved, so it is easy to use a small number of machines to send millions of DNS request attacks per second

Method used

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  • DNS behavior processing method, device and system
  • DNS behavior processing method, device and system
  • DNS behavior processing method, device and system

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Embodiment Construction

[0068] 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.

[0069] Currently commonly used DNS software includes database-based DNS software (such as MYDNS), and BIND. Database-based DNS software (such as MYDNS) software query in this way is based on database or memory database, which can realize fast dynamic data update and facilitate management. However, this DNS processing method needs to query the database for each query. Since the performance of the database query has a bottleneck, it ...

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Abstract

The invention provides a DNS behavior processing method, device and system. The method includes the steps that a received network data packet is analyzed; according to an analysis result, a DNS behavior type corresponding to the network data packet is judged; according to the DNS behavior type, a processing body is determined, wherein the processing body comprises an inner core and / or an application layer; the network data packet is transferred to the determined processing body and processed by the determined processing body. By the adoption of the method, while the DNS defense capacity is improved, the service processing capacity of one machine is improved.

Description

technical field [0001] The invention relates to the field of DNS protection, in particular to a processing method, device and system for DNS behavior. Background technique [0002] DNS (Domain Name System, domain name resolution server) is a distributed database that allows local control of various parts of the entire database, and the entire network can also access the data of each part through the client-server method. With backup and caching mechanisms, DNS will be robust and adequate. [0003] At present, the software systems that provide DNS resolution are generally BIND, modified BIND version, NSD, POWERDNS, etc. These software can achieve a certain degree of attack resistance through ANYCAST load balancing and other methods. [0004] But DNS is based on the UDP protocol, which can be easily simulated to create various request attacks. With the development of the system and the continuous improvement of hardware, the UDP packets that can be sent by a single machine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L29/06
CPCH04L63/1441H04L63/1458H04L61/4511H04L63/0245H04L63/1416
Inventor 濮灿
Owner BEIJING QIHOO TECH CO LTD
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