JP2004038519A - Program management method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent illegal use of a program or to prevent an illegal program from being copied to a client terminal and being used. <P>SOLUTION: On a memory a server 11 manages, a program which each user using the client terminal is permitted to use is managed, only the program which a terminal user is permitted to use in logging in a network by each client terminal is distributed to the client terminal, and all the user programs of the memory in the client terminal are erased at the time of log-out. Moreover, the user program operating in the memory inside the client terminal is monitored after the log-on and, when an impermissible program operates, erasure of the program is immediately requested to the client terminal, and the client terminal erases the program. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a program management method for a server and a client on a network system. In particular, the present invention can easily prevent unauthorized use of the program by distributing a contrasting program from a server at logon and deleting the distributed program from within a client terminal at logout. The present invention relates to a program management method capable of preventing an unauthorized program from being copied into a program.
[0002]
[Prior art]
With the spread of online networks and personal computers in recent years, there has been an increasing number of businesses using personal computers that are connected online to servers such as large computers via the Internet or dedicated lines as terminals. For example, consoles for controlling large computers and terminals used in online reservation systems have conventionally used dedicated consoles. Recently, however, it has been possible to reduce the cost of consoles by connecting a commercially available personal computer online via a LAN. It has become common.
[0003]
However, the problem when using a personal computer as a business online terminal is that the file structure and the program execution environment of the personal computer are generally well known, and the terminal user illegally copies non-business programs to the terminal. It is possible that it can be executed. For example, there are many dangers of virus infection and a decrease in business efficiency by downloading an unauthorized program such as game software from the Internet, or copying and executing an unauthorized program from an external media medium to an online terminal. In order to prevent such a problem, it is effective to manage a program operating on an online terminal connected to a network in a server.
[0004]
As a technique for managing a program operating on a network, for example, there is a technique described in Japanese Patent Application Laid-Open No. 8-263283. In this method, the server manages the program and the identification information of the terminal user, and determines whether or not the program can be executed each time the terminal requests the server to execute the program.
[0005]
[Problems to be solved by the invention]
In the above-described conventional technology, the use of a program that is not under the control of the server cannot be restricted, for example, when a program illegally copied to a client terminal is executed.
[0006]
The present invention has been made in view of the above points, and in a server and a client terminal connected online to the server, it is possible to prevent unauthorized use of a program to be managed and to prevent an unauthorized use of a client terminal. The purpose is to prevent copying the program.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a program distribution method according to the present invention stores, in a network system, a program ID for allowing each user who uses a client terminal to use the memory on a memory managed by a server, A terminal user identification ID transmitted from the client at the time of network log-in is compared with the memory, and only a program permitted to be used is distributed to the client terminal.
[0008]
As a result, each client terminal can use only the program permitted for each user, and manages programs used by all client terminals connected online on the network.
[0009]
Further, the program management method of the present invention is characterized in that all user programs in the memory in the client terminal are erased at the time of logout. As a result, all programs illegally copied by downloading to the client terminal or communicating between terminals while online are deleted.
[0010]
Further, the program management method according to the present invention is characterized in that, at a client terminal connected to a server via a network, the program ID of a program running on the client terminal is periodically notified to the server after network login. Therefore, the user program that operates in the client terminal memory after login is monitored.
[0011]
Further, in the client terminal having the server notification function, the server periodically notifies the client terminal of a program ID operating on the client terminal and a program permitted to each client terminal user managed on the server memory. The IDs are compared, and when an unauthorized program ID is accepted, the client terminal is immediately requested to erase the program, and the client terminal erases the corresponding program in the memory. This makes it difficult for a program illegally copied to the client terminal to operate.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the overall configuration of the present invention. On a network 10, a server 11 and client terminals 12 to 14 applied to the present invention are connected. FIG. 2 shows the internal configuration of the server 11. FIG. 3 shows the internal configuration of the client terminals 12 to 14. The server 20 corresponds to the server 11 in FIG. The client terminal 50 corresponds to the client terminals 12 to 14 in FIG.
[0013]
The server 20 is a device having a client management program 22, and controls a network driver 21 that communicates with a client terminal on a network. The client management program 22 has program management information 31 and user management information 32 on the memory 30 and program files 41, 42, and 43 to be distributed on the disk 40. The program management information 31 includes, as shown in FIG. 7, a table for associating a user ID using a terminal with an ID of a program permitted to be used by each user, and, as shown in FIG. It has a table that associates the location where the file is located.
[0014]
The client terminal 50 is a device having a server connection program 53, and controls a network driver 51 that communicates with a server on the network and an input driver 52 that processes an input at the client terminal. Further, the server connection program 53 has a function of monitoring the memory 60 for operating the program on the client terminal and a function of erasing the program on the memory.
The internal processing in the case where the client terminal 12 shown in FIG. 1 logs in the network to the server 11 and distributes the permitted program from the server 11 to the client terminal 12 will be described below with reference to the flow of FIG. In the client terminal 50 of FIG. 3, when logging in to the network, a user ID is input via the input driver 52 (411). When receiving the input of the user ID, the server connection program 53 deletes the programs 61, 62, 63 on the memory 60 on which the program is running on the client terminal (412). Next, the server connection program 53 transmits user authentication information including the user ID to the server 11 via the network driver 51 (413). In the server 20 shown in FIG. 2, the client management program 22 receives the user authentication information including the user ID transmitted from the client terminal 12 via the network driver 21 and matches it with the user management information managed in the server. Authentication is performed (414).
[0015]
If there is no user management information that matches the received user authentication information, the client management program 22 takes the network connection from the client terminal 12 to the server 11 offline (415). If there is a matching user ID, the client management program 22 selects a program corresponding to a program file name indicating a permitted program in the matching user ID from the program files 41, 42, and 43, and The program file is distributed to the client terminal 12 via the driver 21 (416).
[0016]
An internal process when a network logout is performed by the client terminal 12 will be described below in accordance with the flow of FIG. In the client terminal 50 of FIG. 3, a logout request is input from the input driver 52 (511). Upon receiving the logout request, the server connection program 53 deletes the programs 61, 62, and 63 on the memory 60 on which the program is running on the client terminal (512). Next, the server connection program 53 notifies the server 11 that the client terminal 12 has logged out of the network via the network driver 51 (513).
[0017]
In the server 20 of FIG. 2, the client management program 22 receives the network logout request notified from the client terminal 12 via the network driver 21, and makes the network connection of the client terminal 12 offline (513).
[0018]
The process of notifying the server 11 of the information of the program operating on the client terminal 12 and executing an unauthorized program is described below with reference to the flow of FIG. In the client terminal 50 of FIG. 3, the server connection program 53 collects the program names of the programs 61, 62, and 63 on the memory 60 where the program is running (611), and the user ID of the user using the terminal 12 At the same time, the server connection program 53 transmits the collected program name to the server 11 via the network driver 51 (612). The server 20 of FIG. 2 receives the program name of the program running on the client terminal 12 transmitted from the client terminal 12 via the network driver 21 and obtains the program ID from the table of FIG. It is confirmed from the table in FIG. 8 whether the program ID is permitted to be used by the user using the terminal 12 (613).
[0019]
If the program ID is not assigned or includes an unauthorized program ID, the client management program 22 requests the client terminal 12 to delete the program via the network driver 21 (614). In the client terminal 50 of FIG. 3, the server connection program 53 receives a program deletion request from the client terminal 12 via the network driver 51 and deletes the program from the program execution memory 60.
[0020]
【The invention's effect】
As described above, according to the method of managing a program on a network of the present invention, the program can be easily distributed by distributing the target program from the server and deleting the distributed program from the client terminal at logout. This has the effect of preventing unauthorized use of the program and preventing copying and using an unauthorized program on a client terminal.
[Brief description of the drawings]
FIG. 1 is a diagram showing an entire configuration of an embodiment according to the present invention.
FIG. 2 is a diagram illustrating an internal configuration of a server in the embodiment.
FIG. 3 is a diagram showing an internal configuration of a client terminal in the embodiment.
FIG. 4 is a flowchart illustrating an operation at the time of network login in the embodiment.
FIG. 5 is a flowchart illustrating an operation at the time of network logout in this embodiment.
FIG. 6 is a flowchart illustrating an operation performed when a program which is not permitted is operated, by notifying a server of information of a program operating on a client terminal in the embodiment.
FIG. 7 is a diagram showing program management information in this embodiment.
FIG. 8 is a diagram showing user management information in this embodiment.
[Explanation of symbols]
10: Network 11, 20: Server 12, 13, 14, 15, 50: Client Terminal 21, 51: Network Driver 22: Client Management Program 30: Memory 31: Program Management Information 32: User Management Information 40: Disks 41, 42 , 43: program file 52: input driver 53: server connection program 60: program execution memory 61, 62, 63: program

Claims (4)

A network system comprising a server and one or more client terminals connected to the server by communication means,
In a method for managing a program that runs on each client terminal on the network, means for storing, in a memory managed by a server, an identification ID of a user who uses the client terminal and a program ID for which each user is permitted to use the program. When each user logs in to the client terminal over the network, the user ID transmitted from the client is compared with the memory managed by the server, and only the program permitted to be used is distributed to the client terminal. Characterized program management method. The program management method according to claim 1,
A program management device comprising means for erasing a user program in a memory on a client terminal when a user logs in or logs out of a client terminal from a network connected to the server or when a request from the server is required from time to time. Method. The program management method according to claim 1,
A program management method comprising: a means for periodically notifying a server of information for identifying a program operating on a client terminal after a user logs in to the client terminal connected to the network via a network. The server in the program management method according to claim 1, and the program management method according to claim 3,
The server compares the program ID operating on the client terminal that is periodically notified from each client terminal with the program ID permitted for each user managed on the server memory. A program management method comprising: immediately requesting the client terminal to delete the program; and the client terminal deleting the corresponding program in a memory.

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