Expired intervention method for domain name data lifetime and recursion server

Abstract

The invention provides an expired intervention method for domain name data lifetime and a recursion server, wherein the method comprises the steps of: acquiring a state transition probability parameter corresponding to a web client identification according to the web client identification carried in a domain name inquiry request when receiving the domain name inquiry request of a web client; acquiring a prediction inquiry domain name list for inquiring a domain name according to the state transition probability parameter, wherein the predication inquiry domain name list comprises a predictioninquire domain name and the prediction probability of the prediction inquiry domain name; and prolonging the lifetime of prediction domain name data in a buffer memory according to the prediction probability of the prediction inquiry domain name if the prediction domain name data corresponding to the prediction inquiry domain name is expired. The invention can ensure that the inconsistency of thedomain name data in the recursion server and an authority server can be effectively reduced; the intervention is high; and the flexibility is strong.

Description

technical field [0001] The invention belongs to the technical field of the Internet, and relates to an overdue intervention method and a recursive server for domain name data lifetime. Background technique [0002] Domain Name System (Domain Name System, hereinafter referred to as DNS) is mainly used to complete the mapping from domain names to Internet Protocol (Internet Protocol; hereinafter referred to as IP) addresses and the analysis of other Internet resources, and is an important infrastructure in today's Internet. [0003] In the prior art, DNS includes a recursive server and an authoritative server. Usually, the domain name data in the authoritative server is configured with a Time To Live (TTL for short), which can be used to indicate the time that the recursive server allows the domain name data to be stored in its cache. When the recursive server obtains the domain name data from the authoritative server, it also obtains the TTL of the domain name data; at the s...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an overdue intervention method and a recursive server for domain name data lifetime, which are used to solve the defects in the prior art that the TTL intervention method of domain name data in the recursive server is likely to cause inconsistency and low intervention efficiency, and can effectively Improve the intervention efficiency of the TTL of the domain name data in the recursive server

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