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System, method and apparatus for use in monitoring or controlling internet access

  • US 8,024,471 B2
  • Filed: 09/28/2004
  • Issued: 09/20/2011
  • Est. Priority Date: 09/09/2004
  • Status: Active Grant
First Claim
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1. A method for controlling or monitoring Internet access by categorizing Uniform Resource Locators (URLs), comprising the steps of:

  • receiving a URL request denoting a specified URL;

    generating a categorization request message to request categorization of the specified URL, wherein generating the request comprises generating a unique value to distinguish the categorization request message for the specified URL from other categorization request messages;

    receiving a reply message denoting a category of the specified URI amongst a predetermined set of categories;

    wherein;

    the categorization request message comprises a User Datagram Protocol (UDP) packet having a payload that includes the unique value, a timestamp, and a data section representing the specified URL; and

    the reply message comprises a UDP packet having a payload that includes the unique value and the timestamp corresponding to the categorization request message, and a data section identifying a category of the specified URL amongst the predetermined set of categories;

    calculating a timeout with reference to the timestamp;

    resending the categorization request message upon expiry of the timeout; and

    resending the categorization request message a predetermined number of times, and increasing the timeout between each resend;

    wherein the predetermined number of times is reconfigurable during use.

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