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Network security system and remote machine isolation method

A network security system and network isolation technology, applied in the field of remote machine isolation from the network and remote machine isolation, can solve the problems of virus spread and take a long time, and achieve the effect of preventing spread and improving virus defense.

Inactive Publication Date: 2011-12-21
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it takes a long time from the time the user notices the virus infection until the remote machine is actually isolated from the network while the virus spreads within the network

Method used

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  • Network security system and remote machine isolation method
  • Network security system and remote machine isolation method
  • Network security system and remote machine isolation method

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Embodiment Construction

[0040] As a network security system related to a preferred embodiment of the present invention, a thin client system will be described in detail with reference to the accompanying drawings.

[0041] The network security system according to the present embodiment is a system in which a user of a client terminal can isolate a remote machine at a remote location from the network. Here, the term "isolation" includes not only the concept of completely cutting off the communication of the remote machine and blocking it from the network, but also the concept of maintaining part of the communication of the remote machine and partially blocking it from the network.

[0042] figure 1 is a block diagram showing the configuration of the thin client system according to this embodiment. The thin client system is composed of a remote machine group 100 , a management server 200 , a client terminal group 300 , a network device 400 , a server group 500 , and a network 800 . The client termina...

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Abstract

In a thin client system in which a client terminal is connected to a remote machine via a network to perform business processing, the virus-infected remote machine is isolated from the network according to the instruction of the user of the client terminal, and the minimum requirements for business processing are maintained. communication settings. That is, the request issuing agent issues a quarantine request according to user input, and the request execution agent changes the communication setting of the remote machine according to the quarantine request. In addition, with the remote machine isolated from the network, the management server can change the network setting of the remote machine by referring to a disconnection setting file in which the minimum necessary communication settings of the remote machine are stored in advance.

Description

technical field [0001] The invention relates to a network security system, in particular to a remote machine isolation method for isolating a remote machine (remote computer) possibly infected with a computer virus from a network through a client terminal in a Thin Client System. [0002] This application claims priority based on Japanese Patent Application No. 2009-36512 for which it applied in Japan on February 19, 2009, and uses the content here. Background technique [0003] In recent years, among the client server systems, a thin client system in which functions of client terminals are limited is developed to be used in a network. In the thin client system, a client terminal is connected to a remote machine through a network, and a user executes various processes by remotely operating the remote machine from the client terminal. [0004] On the other hand, computer viruses (hereinafter, simply referred to as "viruses") spread via networks such as the Internet, and info...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/56H04L12/70
CPCH04L63/145
Inventor 小沼宽明
Owner NEC CORP