A method, device and system for controlling access

Abstract

The purpose of this application is to provide a method, device and system for controlling access. Compared with the prior art, the network device of the present application acquires the access request about the target address sent by the user equipment, and if the access request meets the condition of a substitute access, sends the access request to the substitute server, and then, the substitute server obtains the access request of the network device An access request about the target address is sent; based on the access request, the data corresponding to the target address is obtained from the storage database, and the data corresponding to the target address is returned to the network device, and then the network device receiving the data corresponding to the target address returned by the substitute server, and returning the data corresponding to the target address to the user device; In this case, instead of the source server responding to the user's access request, to prevent the outflow of tampered pages.

Description

technical field [0001] The present application relates to the computer field, and in particular to a technology for controlling access. Background technique [0002] According to relevant detection statistics, nearly 25,000 websites in my country were tampered with in 2015, of which 898 were tampered with government websites, and some government websites were tampered with many times. Among the tampered government websites, more than 85% of the pages were embedded with links to illegal websites such as gambling and private servers, and nearly 10% of the homepages or login pages of the websites were directly linked to illegal information, causing very bad political and social impact. From this point of view, the rapid restoration of webpage display is particularly important to minimize the negative impact of webpage tampering and damage. [0003] For the situation where the content of the source server is tampered with, destroyed, or even downtime, the existing technology ge...

AI Technical Summary

Problems solved by technology

When the CDN node obtains the latest web page data from the source server, if the web page has been tampered with, the tampered web page data will be stored in the node, and the CDN node providing services to the outside will cause the tampered page to flow out

[0006] (2) After the source server goes down, the always-on function based on CDN caching technology only provides visitors with a snapshot of the home page, and other pages will not be accessible

Once the CDN cache is enabled to provide services, all visitors will obtain page content from the CDN cache, and it is impossible to control whether users in a certain area use the cache or not.

Images