Systems and methods for filtering internet access

摘要

A computer-implemented method for filtering Internet access may include: 1) identifying a domain-name-system request from a client system, 2) identifying a filtering policy for the client system, 3) bundling the filtering policy with the domain-name-system request, and then 4) forwarding the bundled domain-name-system request to a domain-name-system server. Various other methods and systems are also disclosed.

主权项

1. A computer-implemented method for filtering Internet access, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising:
intercepting a domain-name-system request from a client system; identifying a filtering policy for the client system, the filtering policy comprising filtering rules for filtering access to domains; bundling the filtering policy with the domain-name-system request by modifying the domain-name-system request to add the filtering policy to the domain-name-system request; forwarding the bundled domain-name-system request to a domain-name-system server, wherein the domain-name-system server is programmed to:
identify the filtering policy that is bundled with the domain-name-system request;identify a domain that the domain-name-system request requests to resolve to an IP address; determine that the filtering policy applies to the domain; filter access to the domain based on the filtering rules included in the filtering policy.