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Domain name resolution (DNS) acceleration method and device based on home gateway

A home gateway and domain name resolution technology, applied in the field of computer networks, can solve problems such as poor DNS server performance, and achieve the effect of improving the speed of domain name resolution, low overhead, and speed.

Active Publication Date: 2014-08-06
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problems to be solved by the present invention: one is to realize DNS service on the home gateway; second, because the performance of the home gateway is much worse than that of the DNS server, the DNS service provided by the home gateway needs a less expensive and more efficient method

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  • Domain name resolution (DNS) acceleration method and device based on home gateway
  • Domain name resolution (DNS) acceleration method and device based on home gateway
  • Domain name resolution (DNS) acceleration method and device based on home gateway

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Embodiment Construction

[0014] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0015] figure 1 It is an application scenario diagram of an embodiment of the home gateway-based DNS domain name resolution acceleration method of the present invention. exist figure 1 Among them, the home gateway (home router) 12 acts as a DNS server and performs the basic functions of a DNS server. It forwards the request from the user 11 and accepts the response from the local DNS server 13, returns the response of the local DNS server 13 to the user and copies a copy to the DNS cache 14 of the home gateway. The user 11 can obtain the IP address corresponding to the domain name more quickly, thereby speeding up DNS domain name resolution.

[0016] figure 2 It is a weight calculation method diagram of an embodiment of the home gateway-based DNS domain name resolution acceleration method of the present invention. exist figure 2 , the home gat...

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Abstract

The invention provides a domain name resolution (DNS) acceleration method and device based on a home gateway, and relates to the technical field of computer networks. The DNS acceleration method comprises the steps that a DNS request of a user is monitored by the home gateway, a DNS cache is searched to determine whether a response message corresponding to the DNS request exists or not, if yes, a cache file is sent to the user, if not, the home gateway forwards the DNS request to a DNS server provided for the user by an ISP, and the home gateway receives a response from the DNS server, sends the response back to the user and stores a duplicate of the response in the DNS cache; weight values of all domain names in a DNS log are calculated at fixed times, and the domain names with the first N weight values are prefetched and updated into the DNS cache supposing that the capacity of the DNS cache is set as N by the user.

Description

technical field [0001] The invention relates to computer network technology, in particular to domain name resolution acceleration technology. Background technique [0002] The broadband access network in communication refers to the transmission line from the broadband access end office (or module office access switch, etc.) to the end user, that is, the "last mile". The "last mile" transmission speed is low and the transmission delay is large. The "last mile" has become a delay bottleneck for various services. [0003] Traditional home broadband users perform a complete DNS (Domain Name System) domain name resolution process as follows: When a user initiates a DNS domain name resolution request, it will first use the local DNS server provided by the ISP (Internet Service Provider) for resolution. If the IP (Internet Protocol address) address of the corresponding domain name is queried in the domain name and IP address mapping table of the DNS server, it can be returned to t...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L29/08H04L12/28
Inventor 徐川王新恒赵国锋张广兴唐红
Owner CHONGQING UNIV OF POSTS & TELECOMM
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