Method and apparatus for configuring a client to redirect requests to a caching proxy server based on a category ID with the request

• US 6,138,162 A
• Filed: 02/11/1997
• Issued: 10/24/2000
• Est. Priority Date: 02/11/1997
• Status: Expired due to Term

• Current Assignee: Mercury Kingdom Assets Limited
• Original Assignee: PointCast, Inc. (Warner Bros. Discovery, Inc.)
• Inventors: Pistriotto, Joseph C., Montinola, Katrina
• Primary Examiner(s): Maung, Zarni
• Assistant Examiner(s): CALDWELL, ANDREW T
• Application Number:
  US08/797,724
• Time in Patent Office: 1,351 Days
• Field of Search: 395/200.54, 395/200.55, 395/200.59, 395/200.48, 709/224, 709/225, 709/229, 709/218
• US Class Current: 709/229
• CPC Class Codes: H04L 2463/103 applying security measure for protecting copyright
• CPC Class Codes: H04L 63/0245 Filtering by information in the payload
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/563 Data redirection of data network streams
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A computer network including a client, at least one caching proxy server, and a destination computer is described. In a specific embodiment, a client computer may request particular types of information by including a category ID in request messages. In order to reduce network traffic, the destination computer may redirect the client'"'"'s request messages to a caching proxy server, which is preferably located behind the same firewall or gateway as the client. The destination computer may initiate the redirection of client computer requests after receiving an HTTP proxy_-- GET request message from the client. The destination computer sends a message to the caching proxy server specifying the categories of request that the client computer will direct to the caching proxy server. The proxy server forwards this message to the client computer. The client computer uses the information contained in this message to direct requests messages to a specific caching proxy server based on a category ID.

Claims

1. A computer network, comprising:

a first client computer to direct a request having categories;

a first caching proxy server coupled to the first client computer, the first caching proxy server to receive a first data and to transmit the first data to the first client computer; and

a destination computer coupled to the caching proxy server, the destination computer to transmit the first data to the caching proxy server, the first data to indicate which categories of the request the client computer will redirect to the caching proxy server.

2. The computer network of claim 1, wherein the client computer transmits a HTTP proxy_-- GET request to the destination computer to initiate the redirect.

3. The computer network of claim 1, wherein the first proxy caching server returns a second data to the destination computer based on the request.

4. The computer network of claim 1, wherein the destination computer transmits a second data to the caching proxy server, and wherein categories of the request are redirected to a second proxy caching server based on the second data.

5. A method of request handling, comprising:

receiving a first data by a caching proxy server from a destination computer;

transmitting the first data from the caching proxy server to a client computer, the first data to indicate which categories of a request the client computer will redirect to the caching proxy server; and

directing the client request of the client computer to the caching proxy server based on the transmitted first data.

6. The method of claim 5, further comprising:

receiving the request by the caching proxy server;

processing the request; and

returning a second data to the destination computer.

7. The method of claim 5, further comprising redirecting the request to a second caching proxy server by determining categories of the request that the first caching proxy server will redirect to the second caching proxy server.

8. The method of claim 5, wherein the first data is transmitted utilizing a TCP/IP compliant protocol.

9. The method of claim 5, further comprising transmitting a HTTP proxy_-- GET request from the client computer to the destination computer to initiate redirection.

10. An article of manufacture comprising a computer usable medium having a computer readable program code means for redirecting a client computer request of a destination computer to a caching proxy server of the client computer, all of which communicate via a network, comprising:

a first code segment for receiving a first data by the caching proxy server from the destination computer;

a second code segment for transmitting the first data from the caching proxy server to the client computer, the first data to indicate which categories of the request the client computer will redirect to the caching proxy server; and

a third code segment for directing the client request of the client computer to the caching proxy server based on the transmitted first data.

11. The article of manufacture as recited in claim 10, further comprising a fourth code segment for receiving the request by the caching proxy server, and for processing the request and returning a second data to the destination computer.

12. The article of manufacture as recited in claim 10, further comprising a third code segment for redirecting the request to a second caching proxy server by determining categories of the request that the first caching proxy server will redirect to the second caching proxy server.

13. The article of manufacture as recited in claim 10, wherein the network utilizes a TCP/IP compliant protocol for transmitting the first data.

14. The article of manufacture as recited in claim 10, further comprising a fourth code segment for transmitting a HTTP proxy_-- GET request from the client computer to the destination computer to initiate redirection.

15. The article of manufacture as recited in claim 10, wherein the client and the caching proxy server have a private channel for sharing private data.