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Network system, method and device for accessing local area network, and DNS server

A technology of DNS server and network system, which is applied in the field of computer network and can solve problems such as inaccessibility of customers

Inactive Publication Date: 2019-09-24
上海上湖信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a network system, a method and device for accessing a local area network, and an NDS server to solve the technical problem that customers cannot access due to site failures in the prior art

Method used

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  • Network system, method and device for accessing local area network, and DNS server
  • Network system, method and device for accessing local area network, and DNS server
  • Network system, method and device for accessing local area network, and DNS server

Examples

Experimental program
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Embodiment approach

[0068] In a possible implementation manner, when the LocalDNS server selects a site from the sites responding to the address obtaining request, the LocalDNS server selects the site with the smallest load from the sites responding to the address obtaining request;

[0069] During specific implementation, the GSLB equipment of each site sends the load of the site to the LocalDNS server, and the LocalDNS server selects the site with the smallest load, and sends the IP address of the site with the smallest load to the client, so that the client can access the site. The least loaded site.

[0070] The following is a specific example, assuming that the number of sites is 3, namely site 1, site 2 and site 3; the access load can be the number of users visiting within a period of time, or traffic; the following is an example of the number of users:

[0071] GSLB in site 1 sends the access load of site 1 to the LocalDNS server, and the number of users is 100;

[0072] GSLB in site 2 se...

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PUM

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Abstract

The invention relates to the technical field of computer networks, in particular to a network system, a method and device for accessing a local area network and a DNS server. The network system comprises a local domain name system Local DNS server and at least two sites used for transmitting access requests. The LocalDNS server is used for selecting one site from the at least two sites after receiving the DNS request sent by the client, and sending the address of the selected site to the client, so that the client can access according to the address of the site. According to the system, the at least two sites are adopted to access the local area network, and when one site breaks down, the client can also adopt other sites to access the local area network, so that the success rate of accessing the local area network by the client is improved.

Description

technical field [0001] The present application relates to the technical field of computer networks, in particular to a network system, a method and device for accessing a local area network, and a DNS server. Background technique [0002] The domain name system (Domain Name System DNS) server is mainly used to complete the mapping from the domain name to the Internet Protocol (Internet Protocol IP) address. Large-scale portal sites receive visits from a large number of users every day and every moment. Specifically, domain name resolution is performed through the user's local DNS server. Specifically, the easiest way for a user to access the network is to write the required address into the browser, wherein the address of the website is usually composed of letters, which is easy for the user to remember. The local domain name system Local DNS server finds the address of the data server in the corresponding site according to the domain name of the website, and the user's co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L12/24
CPCH04L41/0663H04L61/4511
Inventor 徐强张俊
Owner 上海上湖信息技术有限公司