Relay server and relay communication system

A server and relay group technology, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems such as unreliable prevention of accidental rewriting or disappearance of files

Active Publication Date: 2008-11-12
MURATA MASCH LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is limited to the case of sharing a file in a file format with a password attached, for example, a password c

Method used

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  • Relay server and relay communication system
  • Relay server and relay communication system
  • Relay server and relay communication system

Examples

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Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing the overall configuration of a relay communication system according to an embodiment of the present invention.

[0029] As shown in FIG. 1, this relay communication system is composed of a plurality of LANs connected to a WAN. Furthermore, this relay communication system has an external server S, a relay server R, a client terminal T, a file server F, and the like.

[0030] WAN (Wide Area Network) is a network that connects different LANs to each other. In this embodiment, the Internet is used as the WAN.

[0031] LAN (Local Area Network) is a relatively small-scale network constructed in a limited place. There are a plurality of LANs, and they are constructed in places that are physically separated from each other. In the present embodiment, it is assumed that LAN 1 is constructed at the Tokyo branch office, and LANs 2, 3, and...

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Abstract

A relay server is capable of communicating with other relay servers through an external server arranged on a Wide Area Network. The relay server stores information about a registered terminal, information about the relay servers forming a relay group by permitting connection among each other, and information about a resource and a client terminal sharing the resource. When an operation instruction regarding the resource in another terminal is received, the relay server relays the operation instruction from the registered terminal to another relay server. However, when key information is stored in association with the resource, the relay server relays the operation instruction to the other relay server only when a correct key has been entered.

Description

technical field [0001] The present invention mainly relates to the configuration of a relay server capable of communicating between terminals. [0002] This application claims the priority of Japanese Patent Application No. 2007-124708 filed on May 9, 2007 and Japanese Patent Application No. 2007-152121 filed on June 7, 2007, the entire contents of which are incorporated herein. Background technique [0003] Conventionally, a communication technique called a virtual private network (Virtual Private Network: VPN) is known (for example, refer to Japanese Patent Laid-Open No. 2002-217938). This VPN is used, for example, to communicate via the Internet between terminals connected to LANs of a plurality of branch offices (bases) installed in various regions. With the above-mentioned VPN, it is possible to use another remote LAN like a directly connected Internet. [0004] However, since such a system constructs a network virtually, it tends to become rigid, and it is not easy t...

Claims

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Application Information

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IPC IPC(8): H04L9/00H04L12/46H04L12/66
Inventor 谷本好史
Owner MURATA MASCH LTD
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