JP2003216495A - Server device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To take out a save region part of display data of a Web page without cutting power supply to a server device and improve operation efficiency in the server device, to positively prevent interpolation of the display data of the Web page stored in the server device, and to allow preparation of an interactive page by an input operation from a client device. <P>SOLUTION: In the server device 10, the display data of the Web page is separated from a storage area of software, and it is stored so it can be rewritten in a portable nonvolatile memory 4. In response to operation of a switching means 6 to an access prohibiting state, a process is carried out for prohibiting access to the display data stored in the nonvolatile memory 4. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a server device that provides a Web page to a client device.

[0002]

2. Description of the Related Art The Internet provides a service of an information retrieval system called WWW. Clients on the internet
/ In the server system, by causing the server device to function as a web server, the server device displays a web page as an information screen of the Internet on the display screen of the client device in response to a request from the client device.

A personal computer is used as the server device. Software for performing a process of providing a Web page to a client device is installed in the computer body. This software is roughly classified into "Windows" (registered trademark), "Linux", and "Unix".
An operating system (OS) as basic software such as (registered trademark), a WWW server program that performs a process of providing a Web page to a client device, and a network interface (software that performs a communication process between networks according to a predetermined protocol). )
Consists of. A Web page is an HTML file or image file and is display data of information such as text, images, voices, and moving images. These software and W
The display data of the eb page is stored in the hard disk of the computer main body.

When updating a web page, the display data of a new web page is created by a personal computer different from the server device.

In this case, there is a demand for taking out the display data storage area of the hard disk and rewriting the display data by another computer without cutting off the power supply to the server device. If the power supply to the server device is not cut off, operating system (OS)
Since the server has been started, the server device can continue the processing.

However, if the hard disk having the display data storage area is taken out without cutting off the power supply to the server device, the data and system may be damaged. Therefore, the power supply to the server device is cut off. Then, I had to take out the hard disk and rewrite the display data with another computer. Therefore, there is a problem that the operating system (OS) is stopped in the server device, the processing in the server device is interrupted, and the work efficiency is reduced.

The present invention has been made in view of the above circumstances, and the operation in the server device can be performed by enabling the storage area portion of the display data of the Web page to be taken out without cutting off the power supply to the server device. The first problem to be solved is to improve efficiency.

By the way, in recent years, there have been cases in which homepages have been maliciously tampered with. Therefore, a security system has been developed that prohibits access to the display data so that the display data of the Web page stored in the hard disk of the server device is not rewritten.

As a security method, there is a method of dealing with software.

However, if the software is used, the display data may be accessed and the display data may be tampered with by decrypting the software.

As another security method, a lock switch is provided in the server device, and it is determined that the lock switch has been operated in a "rewrite prohibited" state, and writing to the hard disk is impossible. It is possible to lock the state.

Here, a CGI (Common Gateway Interface) program is usually incorporated in the WWW server program, and an interactive page (interactive page) is created by an input operation from the client device. For example, interactive pages called "bulletin board" and "chat" are created by executing the CGI program.

However, if writing to the hard disk is locked in an impossible state, an input operation from the client device will prevent the CGI program from starting.
Since the CGI program is not executed, it becomes impossible to create an interactive page by an input operation from the client device.

The present invention has been made in view of the above circumstances, and it is possible to reliably prevent tampering with display data of a Web page stored in a server device, and at the same time, allow creation of an interactive page by an input operation from a client device. This is the second problem to be solved.

[0015]

[Means for Solving the Problems and Effects] The first invention is
In order to achieve the first problem to be solved, in a server device in which software for performing a process of providing a web page to a client device is installed, display data of the web page is separated from a storage area of the software. It is characterized in that it is rewritably stored in a portable non-volatile memory.

According to the first aspect of the present invention, in the server device 10, the display data of the Web page is separated from the storage area of the software and rewritably stored in the portable non-volatile memory 4. Only the storage area of the display data of the Web page can be taken out without cutting off the power supply to the server device 10. Therefore, the server device 10 can continuously perform the processing, and the operation efficiency is improved.

According to a second aspect of the present invention, in order to achieve the second object, in a server device in which software for performing processing for providing a web page to a client device is installed, display data of the web page is stored in the software. It is separated from the storage area of the wear and rewritably stored in the non-volatile memory and the access to the display data stored in the non-volatile memory is prohibited by operating the switch means to the access prohibited state. It is characterized by performing the processing.

According to the second invention, the display data of the Web page is separated from the storage area of the software, rewritably stored in the non-volatile memory 4, and the switch means 6 is operated in the access prohibited state. Accordingly, processing for prohibiting access to the display data stored in the non-volatile memory 4 is performed. For this reason, although it is impossible to write to the non-volatile memory 4 and the Web page cannot be rewritten, W
It is possible to access software other than the eb page. Therefore, it is possible to surely prevent the display data of the Web page stored in the server device 10 from being tampered with, and at the same time, activate the software by the input operation from the client device 20 to allow the creation of an interactive page or the like.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 shows the overall configuration of the embodiment.

The server device 10 and the client device 20
And are connected to each other by a communication means 30 so that they can be transmitted and received to and from each other. Further, the server device 10 and the web page creation terminal device 40 are connected by a communication means 50 so as to be capable of transmitting and receiving mutually. The communication means 30 and 50 are, for example, the Internet, an intranet, a LAN (local area network), etc., and include any communication means capable of wired or wireless communication. In the embodiment, the communication means 3
It is assumed that 0 is the Internet and the communication means 50 is a LAN.

On the Internet, services such as WWW (World Wide Web: information retrieval system on the Internet) are provided.

On the Internet as the communication means 30, data is a predetermined communication protocol (TCP / I
P) is transmitted and received. The server device 10 is WWW
To function as an HTTP (Hyper Text Transfer Protocol) server. The server device 10, which is an HTTP server, uses HTML.
The Web page as a file described in the (hyper text markup language) format is displayed on the display screen of the client device 20 which is the request source.

The configuration of the server device 10 will be described later with reference to FIG.

The client device 20 has a display 21. A web browser as data display software is installed in the client device 20. Therefore, on the display screen 21a of the display 21 of the client device 20, a Web page as an HTML file or an image file transmitted according to HTTP is displayed. The client device 20 is a personal computer, a workstation, a mobile terminal, or the like.

In the Web page creation terminal device 40, the display data of the Web page to be stored in the server device 10 is created. The web page creation terminal device 40 is
Examples include personal computers, workstations, and mobile terminals.

FIG. 1 shows the configuration of the server device 10.

The server device 10 roughly comprises a substrate 1 and a casing (not shown) for accommodating the substrate 1 therein.

An AC power supply connection adapter 2 to which an AC power supply is connected, an interface 3 for connecting a LAN such as Ethernet (registered trademark), and a portable non-volatile memory 4 are detachably mounted on the substrate 1. Slot 5
A switch 6 for prohibiting access to the non-volatile memory 4 by operating the "access prohibited state" position and a flash ROM 7 are provided.

The non-volatile memory 4 is, for example, a compact flash (registered trademark), smart media, memory stick, multimedia disk, or the like.

The server device 10 is installed with software for processing to provide a Web page to the client device 20. This software is roughly classified into an operating system (OS) as basic software such as “Windows”, “Linux”, and “Unix” (registered trademark), and a WWW that performs a process of providing a Web page to the client device 20. It consists of a server program and a network interface (software) that performs communication processing between networks according to a predetermined protocol. These software are stored in the flash ROM 7 of the server device 10.

The Web page is an HTML file or an image file and is display data of information such as text, image, voice, and moving image. The display data of the Web page is separated from the storage area of the software and can be carried freely. It is rewritably stored in the nonvolatile memory 4.

First Embodiment When updating a Web page, the display data of a new Web page is created by the Web page creation terminal device 40. In this case, the nonvolatile memory 4 is attached / detached from the slot 5 without cutting off the power supply to the server device 10. Then, the non-volatile memory 4 is attached to the slot of the Web page creation terminal device 40, and the We operation is performed by an input operation on the Web page creation terminal device 40.
Page b is rewritten. The display data is processed into an HTML file or an image file and made into a format that can be displayed by a Web browser.

As described above, according to the present embodiment, only the storage area portion of the display data of the Web page can be taken out without cutting off the power supply to the server device 10, so that the server device 10 continues to operate. Processing can be performed and operation efficiency is improved.

Second Embodiment When the display data of the Web page is rewritten by an authorized administrator, the non-volatile memory 4 is reattached to the slot 5 of the server device 10. Then, the switch 6 of the server device 10 is operated to the “access prohibited state” position by the administrator of the server device 10 so that the display data of the Web page is not rewritten by the input operation from the client device 20.

A security program is incorporated in the WWW server program of the server device 10.

When the security program is started,
The "rewrite prohibited" flag is set. This locks the nonvolatile memory 4 into a state in which writing is not possible via the CPU of the server device 10.

Here, usually, a CGI program is incorporated in the WWW server program, and an interactive page (interactive page) is created by an input operation from the client device 20. For example, interactive pages called "bulletin board" and "chat" are created by executing a CGI program.

In the present embodiment, although the Web page cannot be rewritten because the nonvolatile memory 4 is locked in a state where writing is impossible, the flash ROM 7 can be accessed and writing to an interactive page is not possible. It is possible. Therefore, when an input operation for writing an interactive page is performed on the client device 20,
The CGI program of the flash ROM 7 of the server device 10 is activated and an interactive page is created.

As described above, according to this embodiment, it is possible to surely prevent the display data of the Web page stored in the server device 10 from being tampered with, and at the same time, allow the interactive device to be created by the input operation from the client device 20. You can

Further, as is apparent from the first and second embodiments, the Web page is rewritten when the non-volatile memory 4 is detached from the server device 10, and the non-volatile memory 4 is replaced by the server device. When the switch 6 is attached to the device 10, the switch 6 is operated to the “access prohibited state” position, so that even if the input operation is performed from the web page creation terminal device 40, the web page cannot be accessed. Because you can
The security effect against page tampering is further improved.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of an embodiment.

FIG. 2 is a diagram showing a configuration of a server device.

[Explanation of symbols]

4 Non-volatile memory 6 switch 10 Server device 20 client devices 30, 50 Communication means 40 Web page creation terminal device

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Takahashi             3-25-1 Shinomiya, Hiratsuka City, Kanagawa Prefecture             Komatsu Seisakusho Electronics Business Book             Department (72) Inventor Hidenori Kito             3-25-1 Shinomiya, Hiratsuka City, Kanagawa Prefecture             Komatsu Seisakusho Electronics Business Book             Department F-term (reference) 5B017 AA07 BA04 CA14 CA16                 5B082 EA11 HA05 HA09

Claims (2)

[Claims] 1. In a server device in which software for performing a process of providing a web page to a client device is installed, display data of the web page is separated from a storage area of the software and is portable and non-volatile. In memory,
A server device which is rewritably stored. 2. A server device in which software for performing a process of providing a web page to a client device is installed, wherein display data of the web page is separated from a storage area of the software and stored in a non-volatile memory. A server device, which stores rewritably and performs a process of prohibiting access to display data stored in the non-volatile memory in response to operating the switch means in an access prohibited state.