Virus-preventing method of network computer without local operating system

A network computer and operating system technology, applied in the field of virus prevention in computer networks, can solve the problems of poor system robustness, weak anti-virus ability, and low data security, so as to shorten the response time and enhance the anti-virus ability , Good effect of robustness

Inactive Publication Date: 2006-08-02
TSINGHUA UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the problems of low security of NC operating system, application program data and user data in the prior art, weak anti-virus capability and poor system robustness, the present invention proposes a virus prevention system based on a local network computer without an operating system method

Method used

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  • Virus-preventing method of network computer without local operating system
  • Virus-preventing method of network computer without local operating system
  • Virus-preventing method of network computer without local operating system

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Embodiment Construction

[0044] In the present invention, the file system view F that each user can see i Both contain two parts, one part is the user view U formed by redirecting the file system i , part of which is the user view S formed by the NC secure network file system i . The relationship can be expressed as the following formula (Formula 1):

[0045] f i =U i ∪S i

[0046] (F i : i user file system view; U i : i user redirects the user view under the file system; S i : user view under i user security network file system)

[0047] The formation mechanisms of these two user views are introduced respectively below.

[0048] There are three views in the redirected file system: customized disk view 402 , redirected disk view 403 , and user view 401 . Such as Figure 4 .

[0049] The customized disk view corresponds to the customized disk 404. There is only one customized disk in the system, and the customized disk includes an image of an operating system and an initial application pro...

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Abstract

The invention relates to a computer virus prevention method of basic non-operation system network in the filed of virus prevention which has the following characters: reorient file system client program in NC application server, file redirection finder, virtual disk drive mould, and NC safety network file system client program: user credible registry and encode-decode mould, operation system and application program of locating magnetic disk mirror-image file which uses relocating magnetic disk mirror-image file provided in viewing form to restore processing data for user, NC user data sever which can allocate NC safety network file, provide the service of credible registry and safety calling, and provide user private data catalog in viewing form. NC client file is preserved with pieces and disordered sequence in the relocating magnetic disk mirror-image file and it uses sector as its unit.

Description

1. Technical field [0001] The invention belongs to the technical field of virus prevention in computer networks. 2. Technical background [0002] The development of computers has generally gone through three stages: the mainframe stage, the personal computer stage, and the network computing stage. Network Computer (Network Computer or NC) was first proposed by Oracle Corporation in 1995, and it is a representative computer form in the network computing stage. In May 1996, Oracle Corporation jointly formulated the Network Computer ReferenceNCe Profile 1 (Network Computer RefereNCe Profile 1) together with four other companies. NC adopts the method of simplifying computer hardware. The client has no local hard disk, uses low-power CPU, and the main board is equipped with a large-capacity non-volatile storage device, which is usually a read-only memory ROM or a flash memory (Flash ROM). In terms of software, traditional NCs store embedded operating system or terminal protocol...

Claims

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Application Information

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IPC IPC(8): G06F1/00H04L29/06
Inventor 张尧学匡文渊韦理徐鹏志徐广斌金鑫
Owner TSINGHUA UNIV
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