System and Method for Improved Internet Content Filtering

• US 20080209057A1
• Filed: 09/28/2007
• Published: 08/28/2008
• Est. Priority Date: 09/28/2006
• Status: Abandoned Application

• Current Assignee: Paul Martini, Peter Martini
• Original Assignee: Paul Martini, Peter Martini
• Inventors: Martini, Peter, Martini, Paul
• Application Number:
  US11/863,474
• Publication Number:
  US 20080209057A1
• Time in Patent Office: Days
• US Class Current: 709/229
• CPC Class Codes: G06F 16/9535 Search customisation based on user profiles and personalisation
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 63/0236 Filtering by address, protocol, port number or service, e.g. IP-address or URL
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 63/1441 Countermeasures against malicious traffic countermeasures against attacks on cryptographic mechanisms H04L9/002
• CPC Class Codes: H04L 63/1483 service impersonation, e.g. phishing, pharming or web spoofing detection of rogue wireless access points H04W12/12
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

Briefly, the present invention provides a system and methods for filtering internet content. The system has an internet connection filter device that filters information being transmitted on the connection between one or more computers and the internet. The device stores rules on permissible and impermissible categories of content in local memory. The device detects and holds back DNS and ‘get’ requests from the one or more computers to the internet. The device requests the categories of content associated with the URL'"'"'s in the DNS and ‘get’ requests from and internet server. The device applies the locally stored rules to the DNS and ‘get’ requests based on the categories of content received from the internet server.

Claims

1. An internet connection filter device, comprising:

a connection to a computer;

a connection to the internet;

a memory; and

a processor;

the processor performing the steps of;

storing categories of content to block in the memory;

requesting categories of content associated with a URL from an internet server; and

blocking access to the URL when a category of content associated with the domain matches a category of content to block stored in the memory.

2. The internet connection filter device according to claim 1, wherein the processor performs the additional steps of:

detecting a DNS request from the computer;

preventing the DNS request from being transmitted pending filtering; and

extracting the URL from the DNS request.

3. The internet connection filter device according to claim 1, wherein the processor performs the additional steps of:

detecting a get request from the computer;

preventing the get request from being transmitted pending filtering; and

extracting the URL from the get request.

4. The internet connection filter device according to claim 1, wherein the processor performs the additional steps of:

storing information identifying programs to block in the memory; and

blocking packets using protocols corresponding to programs to be blocked.

5. The internet connection filter device according to claim 1, wherein the processor performs the additional steps of:

storing information identifying programs to block in the memory; and

blocking packets directed to IP addresses associated with programs to be blocked.

6. The internet connection filter device according to claim 1, wherein the processor performs the additional steps of:

responding to DNS requests for blocked URL'"'"'s by providing the IP address of the internet connection filter device; and

responding to get requests to directed to the internet connection control device with an html file indicating that the content of the URL is blocked.

7. The internet connection filter device according to claim 1, wherein the processor performs the additional step of:

responding to get requests for blocked URL'"'"'s by with an html file indicating that the content of the URL is blocked.

8. The internet connection filter device according to claim 1, wherein the processor performs the additional steps of:

Associating the categories of content to be blocked in the memory with the MAC address of the computer.

9. A method for improved internet content filtering, comprising:

storing categories of content to block locally;

requesting categories of content associated with a domain from an internet server; and

blocking access to the domain when a category associated with the domain matches a locally stored category of content to block.

10. The method for improved content filtering according claim 9, further including the steps of:

detecting a DNS request;

preventing the DNS request from being transmitted pending filtering; and

extracting the URL from the DNS request.

11. The method for improved content filtering according claim 9, further including the steps of:

detecting a get request;

preventing the get request from being transmitted pending filtering; and

extracting the URL from the get request.

12. The method for improved content filtering according claim 9, further including the steps of:

storing information identifying programs to block locally; and

blocking packets using protocols corresponding to programs to be blocked.

13. The method for improved content filtering according claim 9, further including the steps of:

storing information identifying programs to block locally; and

blocking packets directed to IP addresses associated with programs to be blocked.

14. A method for enabling internet content filtering, operating on a server, comprising:

receiving a request for the categories of content associated with a URL;

obtaining the categories of content associated with the URL from a database; and

responding to the request with the categories of content associated with the URL.

15. A method for deterring identity theft, comprising:

determining if a URL in a get request contains an IP address; and

blocking access to the URL if the URL contains an IP address.