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A browser-based web access method and device

An access method and browser technology, applied in the field of network security, can solve the problems of poor new threat awareness, inconvenient hardware deployment, and complex expansion and expansion.

Active Publication Date: 2022-04-01
北京微步在线科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has inconvenient hardware deployment, complicated problems such as expansion and expansion; and when performing effective web access control, it is necessary to pre-configure the threat intelligence library or other libraries, which leads to its perception of new threats Poor ability

Method used

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  • A browser-based web access method and device
  • A browser-based web access method and device
  • A browser-based web access method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Please see figure 1 , figure 1 A schematic flowchart of a browser-based web access method is provided for the embodiment of the present application. Wherein, the browser-based web access method includes:

[0052] S101. Detect an access URL input by a user in a browser.

[0053]In this embodiment, before the step of detecting the access URL input by the user in the browser, the method also includes:

[0054] Set a dedicated PAC URL matching the customer information in the browser's PAC configuration;

[0055] Download local PAC scripts via dedicated PAC URL.

[0056] In this embodiment, the method can pre-configure a dedicated PAC script for each client in the PAC server, and the script includes the following FindProxyForURL function (i.e. the subsequent proxy lookup function):

[0057] function FindProxyForURL(url, host)

[0058] {

[0059] IPcode = dnsResolve(host+'..pac.onedns.net');

[0060] switch(IPcode) {

[0061] case '127.255.0.1':

[0062] return "PROXY...

Embodiment approach

[0076] As an optional implementation, the method also includes:

[0077] When the local PAC script does not exist or the local PAC script is not the latest version, download the latest PAC script through the dedicated PAC URL, update the local PAC script according to the latest PAC script, and execute step S103.

[0078] In this embodiment, when the user enters the visited URL in the browser, the browser will automatically determine whether the local PAC script exists or has been updated. If it does not exist or has been updated, it will request the latest PAC script from the PAC server according to the configured PAC URL, obtain the latest PAC script from the PAC server and save it locally.

[0079] S103, parse out the host from the access URL.

[0080] S104. According to the proxy lookup function in the local PAC script, sequence the host, user information and domain name of the DNS authoritative server to obtain a proxy lookup instruction.

[0081] In this embodiment, the...

Embodiment 2

[0168] Please see figure 2 , figure 2 It is a schematic structural diagram of a browser-based web access device provided by the embodiment of the present application. Such as figure 2 As shown, the browser-based web access device includes:

[0169] A detection unit 210, configured to detect the access URL input by the user in the browser;

[0170] Judging unit 220, used to judge whether the local PAC script exists and is the latest version;

[0171] Parsing unit 230, used for parsing out host from the access URL when the local PAC script exists and is the latest version;

[0172] The construction unit 240 is used to construct a proxy search instruction through the domain name of the host, user information, DNS authoritative server and the proxy search function in the local PAC script;

[0173] The sending unit 250 is configured to send the proxy lookup command to the DNS authoritative server, so that the DNS authoritative server performs domain name quer...

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PUM

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Abstract

The present application provides a browser-based web access method and device. The browser-based web access method includes: detecting the access URL input by the user in the browser; judging whether the local PAC script exists and is the latest version; when the local PAC When the script exists and is the latest version, the host is parsed from the access URL; the proxy lookup command is constructed through the host, user information, domain name of the DNS authoritative server and the proxy lookup function in the local PAC script; and the proxy lookup command is sent to the DNS authoritative server , so that the DNS authoritative server performs domain name query according to the proxy lookup command, and obtains the access plan identification IP address; determines the web access plan according to the access plan identification IP address; the web access plan is a black domain name access plan, a gray domain name access plan or a white domain name access plan ; Perform web access according to the web access scheme. It can be seen that implementing this implementation manner can effectively control the Web access risk of the browser.

Description

technical field [0001] The present application relates to the field of network security, in particular, to a browser-based web access method and device. Background technique [0002] With the popularity and development of web access, web applications have become the most popular applications on the Internet. While the web has brought convenience to users, hackers have also begun to use the web to attack users' device terminals. Many of these breaches and attacks occurred when browsers visited malicious websites. Therefore, how to prevent access to malicious websites through browsers has become a difficult problem that various organizations and individuals urgently need to solve. At present, in order to solve this problem, those skilled in the art have proposed a method for performing security policy filtering on a gateway device. However, this method has inconvenient hardware deployment, complicated problems such as expansion and expansion; and when performing effective w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/02H04L61/4511G06F16/955
CPCH04L67/02G06F16/955
Inventor 童兆丰黄雅芳薛锋
Owner 北京微步在线科技有限公司