JP5548371B2 - ENVIRONMENTAL INFORMATION CHANGE SYSTEM, TERMINAL DEVICE, AND PROGRAM - Google Patents

Description

  The present invention relates to an environment information change system, a terminal device, a program, and the like that change environment information of a PC (Personal Computer) for end users.

  Currently, in companies and the like, at least one PC is assigned to one employee. In a company with a large number of employees, it is difficult to smoothly operate such an end user PC. As trouble cases in the operation of PCs for end users, there are many problems related to the network.

  Network connection settings in a TCP / IP (Transmission Control Protocol / Internet Protocol) network include (1) setting using a fixed IP address (= fixed address setting), and (2) using DHCP (Dynamic Host Configuration Protocol). There are two settings for automatically allocating IP addresses (= dynamic address setting).

  The fixed address setting has a demerit that it is necessary to manually set the IP address and the load is high, but there is an advantage that it is not necessary to install a server such as a DHCP server like the dynamic address setting. On the other hand, the dynamic address setting has an advantage that it is not necessary to manually set an IP address, but has a disadvantage that it is necessary to install a server such as a DHCP server. In addition, since some business systems do not support dynamic address setting, there is a case where fixed address setting must be selected.

  Japanese Patent Application Laid-Open No. 2004-228561 describes a problem in connecting a PC to a network at a location different from the location where the user normally uses in the fixed address setting. In the fixed address setting, when connecting the PC to the network at a location different from the location where it is normally used, check whether or not the IP address that is normally used is usable. Set to use the assigned IP address.

JP 2005-252561 A

  However, the mechanism described in Patent Document 1 only allows temporary connection to a network in a place where it is not normally used, and cannot provide the same environment as the place where it is normally used. For example, when a certain business system is premised on setting a fixed address, the mechanism described in Patent Document 1 cannot use the business system when connected to a network in an environment different from the place where it is normally used.

  On the other hand, when a PC is relocated due to an organizational reform of a company or the like, it is necessary not only to be able to connect to a network but also to provide the same environment as before when the PC is relocated. In this case, the information to be changed includes various settings such as settings related to individual applications and settings related to individual business systems as well as network connection settings. Hereinafter, such information is collectively referred to as environment information. In particular, environment information regarding network connection is referred to as network environment information.

  Inventors can set environment information after relocation to each PC by performing the following steps (1) to (3) in order to change the environment information associated with the relocation of the PC. The system was operating. (1) The system operator registers the environmental information after relocation for each PC in the server as advance preparation. (2) As an advance preparation, the system operator distributes to each PC an application (= relocation tool) that acquires environmental information after the relocation from the server and automatically changes the environmental information (relocation tool installation is Automatically executed.) (3) The end user causes his / her PC to execute the relocation tool after the end of the day before the relocation of the PC.

  However, this system has the following problems. For example, there are many cases where the end user cannot execute the relocation tool the previous day due to a business trip or the like, or forgets to execute the relocation tool. In addition, for example, when a large number of PCs are relocated due to organizational changes, there are many cases where environment information after relocation is not correctly registered in the server or registration is not in time. In these cases, network connection or the like fails after the PC is relocated. For such a PC, the system operator must go to the site and set the correct environmental information after the relocation. On the day of the large-scale organizational change, many such operations occurred, which hindered the work of end users and placed a heavy load on system operators.

  The present invention has been made in view of the above-described problems, and its purpose is a system for changing environment information of a PC for an end user, and when a large-scale PC is moved due to a company organization change or the like, It is to provide an environment information change system that can greatly reduce the business impact on the end user and the load on the system operator.

In order to achieve the above-described object, the first invention comprises a terminal device and a server connected to the terminal device via a network, and changes environmental information of the terminal device after a predetermined change date and time. In the environment information change system, the server stores server holding information including a change date and time indicating a date and time when the environment information is changed and change information indicating a change content of the environment information for each identifier for identifying the terminal device. And the terminal device stores storage means for storing the local holding information and the setting value of the environment information, and the current date and time is past the change date and time of the local holding information generated at the previous login. If it is, the set value of the environmental information, the first to be changed before time change information from the previous latest the local holding information generated at login of said terminal Boundary information changing means, server holding information acquisition means for connecting to the server and acquiring the server holding information corresponding to the identifier of the server after processing by the first environment information changing means, and the server holding information When the server holding information can be acquired by the acquiring unit, the current date and time is determined after the processing by the local holding information generating unit that copies the server holding information and generates the local holding information, and the processing by the local holding information generating unit. When the change date and time of the local holding information generated at the current login has passed, the setting value of the environment information of the terminal device is changed to the change information of the local holding information generated at the current login. Second environment information changing means for changing to the server holding information corresponding to the own identifier. An environment that functions as the first environment information changing unit, the server holding information obtaining unit, the local holding information generating unit, and the second environment information changing unit at the time of login before and after the change date and time. It is an information change system.

By including the date and time of change in the server holding information, the terminal device automatically functions as a first environment information changing unit, a server holding information acquisition unit , a local holding information generation unit, and a second environment information changing unit when logging in, the end user, if and once logged in to the terminal device before the change date and time of environmental information even after registration of the server holding information, rather than need to be a special work before and after the change date and time of environmental information, change The setting value of the environment information can be changed normally at the time of login after the date and time . Therefore, trouble due to an end user's work mistake does not occur, and the load on the system operator can be greatly reduced.

  When the server holding information acquisition means in the first invention cannot connect to the server by fixed address setting, it is desirable to switch to dynamic address setting and connect to the server. As a result, even if it is not possible to connect to the server due to the change of the fixed address, it is possible to connect to the server by preparing the DHCP server. Even if the server holding information is misregistered or unregistered, the system operator does not need to go to the site and manually change the environment information. This is because if the system operator can switch to dynamic address setting and connect to the server, the end user may log in to the terminal device again after the system operator has correctly registered the server holding information.

According to a second aspect of the present invention, there is provided a terminal device including storage means for storing local holding information and setting values of environment information, a change date and time indicating environment information change date and time for each identifier for identifying the terminal device, and environment information. An environment for changing environment information of the terminal device after a predetermined change date and time in a system in which a server having storage means for storing server holding information including change information indicating change contents is connected via a network In the information change method, the terminal device sets the setting value of the environment information of the terminal device when the current date and time has passed the change date and time of the local holding information generated at the time of previous login. , latest the generated before times previously during login and first environmental information changing step of changing the change information of the local holding information, said first environment information change step When the server holding information can be acquired by the server holding information acquisition step of acquiring the server holding information corresponding to the identifier and the server holding information acquisition step after connecting to the server after the processing by A local holding information generation step for copying the server holding information to generate the local holding information, and a change of the local holding information generated at the time of the current login after the processing by the local holding information generation step A second environment information change step for changing the setting value of the environment information of the terminal device to the change information of the local holding information generated at the time of the current login when the date has passed At the time of login before and after the change date and time of the server holding information corresponding to the identifier The first environment information change step, the server holding information acquisition step, wherein an environmental information changing method characterized by performing a local holding information generation step and the second environmental information changing step.

According to a third aspect of the present invention, there is provided a terminal device connected to a server via a network, the storage means for storing the local holding information and the setting value of the environment information, and the current date and time are generated at the previous login time. said if the past the modification time of local retention information, the change to the terminal the set value of the environmental information, before time change information from the previous latest the local holding information generated at login of the device And a change date and time indicating the date and time when the environment information is changed, and change information indicating the change contents of the environment information, after the processing by the first environment information change means. Server holding information acquisition means for acquiring server holding information, and when the server holding information acquisition means can acquire the server holding information, copy the server holding information and After the processing by the local holding information generating means for generating local holding information and the local holding information generating means, if the current date and time has passed the change date and time of the local holding information generated at the time of the current login, Second environment information changing means for changing the setting value of the environment information of the terminal device to the change information of the local holding information generated at the time of the current login, and the change date and time of the server holding information A terminal device that functions as the first environment information changing unit, the server holding information acquiring unit, the local holding information generating unit, and the second environment information changing unit at the time of login before and after is there.

  A fourth invention is a program for causing a computer to function as the terminal device of the third invention.

  The present invention is a system for changing environment information of PCs for end users, and when a large-scale PC is moved due to a change in the organization of a company, the business impact on the end users and the burden on the system operator are greatly reduced. An environmental information change system that can be provided can be provided.

The figure which shows the outline of environment information change system 1 Hardware configuration diagram of the terminal device 3 Flow chart showing the overall flow of environment information change processing The figure which shows the memory | storage part 32 of the file server 5 The figure which shows an example of the data of the server holding information 41 Flow chart showing the flow of processing realized by the environment information change program Flow chart showing the flow of processing realized by the environment information change program Flow chart showing the flow of environmental information change processing A diagram showing an example of IP address change

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiment of the present invention, a case is considered in which a PC for an end user in a company or the like is moved from a fixed address setting environment to a fixed address setting environment of a different network address.

  FIG. 1 is a diagram showing an outline of the environment information change system 1. As shown in FIG. 1, the environment information change system 1 includes a plurality of terminal devices 3, a file server 5, a DHCP server 7, and the like connected via a network 9.

  The terminal device 3 is, for example, a PC for an end user in a company or the like. When there is an organizational change in a company or the like, the terminal device 3 is moved along with the change of the end user, and the environment information of the terminal device 3 needs to be changed. In the environment information change system 1 according to the embodiment of the present invention, the environment information of the terminal device 3 is changed. The environment information includes not only network environment information but also environment variables of individual applications, settings related to individual business systems, and the like.

  The file server 5 holds environment information after the terminal device 3 is moved. The environmental information after the relocation is registered by the system operator before the relocation. In order to avoid concentration of access, the file server 5 may have a redundant configuration of a plurality of units by synchronizing information held therein. The DHCP server 7 assigns a temporary IP address when the terminal device 3 cannot establish a network connection with the fixed address setting after relocation. The DHCP server 7 is not an essential configuration.

  FIG. 2 is a hardware configuration diagram of the terminal device 3. Note that the hardware configuration in FIG. 2 is an example, and various configurations can be adopted depending on the application and purpose. The hardware configuration of the computer that implements the file server 5 and the DHCP server 7 is also the same.

  In the terminal device 3, a control unit 31, a storage unit 32, a media input / output unit 33, a communication control unit 34, an input unit 35, a display unit 36, a peripheral device I / F unit 37, etc. are connected via a bus 38. .

  The control unit 31 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.

The CPU calls and executes a program stored in the storage unit 32, ROM, recording medium, or the like to a work memory area on the RAM, drives and controls each device connected via the bus 38, and is performed by the terminal device 3. The processing described later is realized.
The ROM is a non-volatile memory, and permanently stores a boot program for the terminal device 3, a program such as BIOS, data, and the like.
The RAM is a volatile memory, and temporarily stores a program, data, and the like loaded from the storage unit 32, ROM, recording medium, and the like, and includes a work area used by the control unit 31 for performing various processes.

The storage unit 32 is an HDD (hard disk drive), and stores programs executed by the control unit 31, data necessary for program execution, and the like. As for the program, a control program corresponding to an OS (operating system) and an application program for causing the terminal device 3 to execute processing to be described later are stored.
Each of these program codes is read by the control unit 31 as necessary, transferred to the RAM, read by the CPU, and executed as various means.

  The media input / output unit 33 (drive device) inputs / outputs data, for example, media such as a CD drive (-ROM, -R, -RW, etc.), DVD drive (-ROM, -R, -RW, etc.) Has input / output devices.

  The communication control unit 34 has a communication control device, a communication port, and the like, is a communication interface that mediates communication between the computer and the network 9, and controls communication with other computers via the network 9.

The input unit 35 inputs data and includes, for example, a keyboard, a pointing device such as a mouse, and an input device such as a numeric keypad.
An operation instruction, an operation instruction, data input, and the like can be performed on the computer via the input unit 35.

  The display unit 36 includes a display device such as a CRT monitor and a liquid crystal panel, and a logic circuit (such as a video adapter) for realizing a video function of the computer in cooperation with the display device.

  The peripheral device I / F (interface) unit 15 is a port for connecting a peripheral device to the computer, and the computer transmits and receives data to and from the peripheral device via the peripheral device I / F unit 37. The peripheral device I / F unit 37 is configured by USB, IEEE 1394, RS-232C, or the like, and usually includes a plurality of peripheral devices I / F. The connection form with the peripheral device may be wired or wireless.

  The bus 38 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  FIG. 3 is a flowchart showing the overall flow of the environment information change process. The system operator registers server holding information in the file server 5 (S101).

  FIG. 4 is a diagram illustrating the storage unit 32 of the file server 5. As shown in FIG. 4, a plurality of server holding information 41 is registered in the storage unit 32 of the file server 5. The server holding information 41 is, for example, a text file whose file name is the host name of the terminal device 3 (“ABC”, “DEF” in FIG. 4). Further, the server holding information 41 may be managed by a database management system (DBMS) using, for example, the host name of the terminal device 3 as a primary key. It is assumed that the end user is not authorized to change the host name of the terminal device 3. In other words, the end user operates using his / her terminal device 3 with the general user authority instead of the so-called administrator authority.

  FIG. 5 is a diagram illustrating an example of data of the server holding information 41. In FIG. 5, network environment information is shown as the environment information included in the server holding information 41. The server holding information 41 includes a host name 51, a change date 52, an IP address 53, a subnet mask 54, a default gateway 55, a DHCP server availability flag 56, an auxiliary setting 57 when connection is not possible, and the like.

  The host name 51 is a host name of the terminal device 3 and is an identifier for uniquely identifying the server holding information 41. The change date 52 is the date when the environment information of the terminal device 3 is changed. The IP address 53, subnet mask 54, and default gateway 55 are information after relocation, respectively. The DHCP server availability flag 56 is a flag indicating whether or not the DHCP server 7 can be used when the terminal device 3 cannot connect to the network with the fixed address setting after the relocation. The DHCP server availability flag 56 is, for example, “1” if available, and “0” if unavailable. The auxiliary setting 57 when connection is not possible is an auxiliary setting when the network connection cannot be made with a regular address.

Next, an environment information change program is installed in the terminal device 3 (S102). The environment information change program may be distributed to the target terminal device 3 by the file server 5 or the like via the network 9, or may be recorded on a medium such as a CD-ROM and the terminal device via the media input / output unit 33. 3 may be stored in the storage unit 32. When the environment information change program is stored in the storage unit 32, it is installed in the terminal device 3 automatically or according to a user instruction.
Note that S101 and S102 are performed in parallel, and either may be performed first.

Next, the end user logs in to the terminal device 3 at a time before the change date 52 at the place before the relocation (S103). When the terminal device 3 is relocated (S104), the end user logs in to the terminal device 3 at a time after the change date 52 at the location after relocation (S105). The terminal device 3 in which the environment information change program is installed performs the processes shown in FIGS. 6 to 8 described later at the time of login, regardless of the login location.
Note that “login” includes not only a case where an end user explicitly inputs an ID / password to perform a login operation but also a case where access to the server is automatically established by the activation of the terminal device 3.

  6 and 7 are flowcharts showing the flow of processing realized by the environment information change program. The processing shown in FIGS. 6 and 7 is automatically executed by the control unit 31 of the terminal device 3 at the time of own login.

  The control unit 31 of the terminal device 3 switches from a user with general authority to a user with administrator authority in order to execute a process that requires administrator authority (S201). Next, the control unit 31 performs link confirmation in order to confirm whether a cable such as an Ethernet (registered trademark) cable is physically connected correctly (S202). In the case of link down, the control unit 31 displays a confirmation message on the display unit 36 (S203), and prompts the end user to confirm the cable or the like. The confirmation message is, for example, “Please check whether the cable is connected correctly”. The control unit 31 detects whether or not the end user has pressed the retry button (S204), returns to S202 when the retry button is pressed, and ends the process when the cancel button is pressed. On the other hand, in the case of link up, the control unit 31 proceeds to S205.

  The control unit 31 creates backup data of environment information (S205). The backup target is environment information (= set value) currently set in the terminal device 3. Since the environment information change program is executed in the background, there is a high possibility that the terminal device 3 will be terminated in the middle of the process without realizing that the end user is executing. In such a case, the control unit 31 may restore the setting value based on the backup data created in S205 at the next login.

  The control unit 31 executes an environment information change process (S206). The environment information change process changes the setting value based on the local holding information. Details will be described later with reference to FIG.

  The control unit 31 connects to the file server 5 and acquires server holding information (S207). The control unit 31 confirms whether the acquisition of the server holding information is successful (S208). The control unit 31 proceeds to S209 if successful, and proceeds to S211 if not successful.

  First, a case where acquisition of server holding information is successful will be described. The control unit 31 copies the server holding information acquired in S207 to generate local holding information (S209), uploads the data read log (S210), and proceeds to S214. For example, the data read log is stored in the storage unit 32 of the file server 7 with the combination of the host name and the processing date and time as a file name.

  Next, a case where acquisition of server holding information is not successful will be described. The control unit 31 confirms the DHCP server availability flag 56 included in the local holding information, and confirms the availability of the DHCP server 7 (S211). If it cannot be used, the control unit 31 proceeds to S214. On the other hand, if it is available, the control unit 31 switches the setting value of the network environment information to the dynamic address setting, and requests the DHCP server 7 to assign an IP address (S212). If the acquisition of the IP address is successful, the control unit 31 repeats the process from S207. If the acquisition of the IP address fails, the control unit 31 proceeds to S214. If the DHCP server 7 cannot be installed, the DHCP server availability flag 56 may be disabled.

In S214, the control unit 31 performs environment information change processing. S20 environment information changing process in the 6, changes the setting value based on the local information held in the previous login. On the other hand, in S214, the setting value is changed based on the local holding information generated in S209.

  The control unit 31 checks whether or not the setting value has been changed in the environment information change process (S215). When the change of the set value has not been executed, the control unit 31 proceeds to S219. On the other hand, when changing the set value, the control unit 31 checks the network connection (S216). If the network connection fails, the control unit 31 displays an error message on the display unit 36 (S217) and ends the process. The error message is, for example, “The network settings have been updated, but communication has not been confirmed.” On the other hand, when the network connection is successful, the control unit 31 uploads the change execution log (S218), and proceeds to S219.

  For example, the change execution log is stored in the storage unit 32 of the file server 7 with the combination of the host name and the processing date and time as a file name. The change execution log also outputs whether the latest server holding information has been acquired and the setting value has been changed, or whether the setting value has been changed by the previous local holding information.

  The control unit 31 displays a processing completion message on the display unit 36 (S219), and ends the processing. The processing completion message is, for example, “Terminal setting change completed. Press OK”.

  FIG. 8 is a flowchart showing the flow of the environment information change process. As illustrated in FIG. 8, the control unit 31 of the terminal device 3 confirms whether or not the current date / time exceeds the change date / time 52 of the local holding information (S <b> 301). When the change date 52 of the local holding information has not been exceeded, the control unit 31 ends the process. On the other hand, when the change date 52 of the local holding information is exceeded, the control unit 31 proceeds to S302.

  The control unit 31 compares the current setting value with the local holding information and checks whether there is a difference in environment information (S302). If there is no difference in environmental information, the control unit 31 ends the process. On the other hand, when there is a difference in environmental information, the control unit 31 proceeds to S303.

  The control unit 31 displays a processing message on the display unit 36 (S303). The in-process message is, for example, “The terminal settings are being changed. Please quit all applications and wait for a process completion message.” The reason for terminating all applications is that the environment variables of each application may be changed.

  The control unit 31 checks whether an IP address has been assigned from the DHCP server 7 (S304). If it has been assigned, the control unit 31 releases the IP address assigned from the DHCP server 7 (S305). On the other hand, if not assigned, the control unit 31 proceeds to S306.

  The control unit 31 changes the setting value based on the local holding information (S306), and performs connection confirmation (S307). If the result is NG and “change to auxiliary setting when connection is not possible” is valid (a value is set in auxiliary setting 57 when connection is not possible), the setting value is changed to the auxiliary setting ( S308). Based on the setting value, the backup data of the environment variable is changed (S309), and the environment information change process is terminated.

  FIG. 9 is a diagram illustrating an example of changing the IP address. In FIG. 9, with the relocation of the terminal device 3, from the fixed address setting with the IP address “192.168.1.100” (= address before change) to “192.168.2.100” (= address after change). In the example shown in FIG.

  (1) shows the change of the IP address when logging into the terminal device 3 before the change date and time. This example shows a situation when the terminal device 3 is logged in after installing the environment information change program.

  When the server holding information in (a) is unregistered, there is no local holding information before the execution of S206. Therefore, in the environment information change process in S206, the change date cannot be confirmed, and the setting value is not changed. Thereafter, in S207, acquisition of server holding information at the address before change fails, and there is no local holding information before execution of S214. In the environment information change process in S214, the setting value is not changed because there is no change information.

  In the first login after the server holding information registration in (b), there is no local holding information before the execution of S206. Therefore, in the environment information change process in S206, the change date cannot be confirmed, and the setting value is not changed. Thereafter, in S207, the server holding information is successfully acquired at the address before change, and the local holding information exists before the execution of S214. In the environment information change process in S214, the change date is confirmed, and the setting value is not changed because the current date has not passed the change date. As described above, when the user logs in before the change date and time, the setting value is not changed to the changed address.

  In the case where the server holding information cannot be acquired for some reason in the first and subsequent logins after the server holding information registration in (c), the local holding information exists before the execution of S206. However, in the environment information change process in S206, the change date is confirmed, and the setting value is not changed because the current date has not passed the change date. Thereafter, in S207, acquisition of the server holding information at the pre-change address fails, but the local holding information already exists before the execution of S214. In the environment information change process in S214, the change date is confirmed, and the setting value is not changed because the current date has not passed the change date. As described above, when the user logs in before the change date and time, the setting value is not changed to the changed address.

  When the server holding information can be acquired by the first and subsequent logins after the server holding information registration in (d), the local holding information exists before the execution of S206. However, in the environment information change process in S206, the change date is confirmed, and the setting value is not changed because the current date has not passed the change date. Thereafter, in S207, the server holding information is successfully acquired at the address before change, and the local holding information exists before the execution of S214. In the environment information change process in S214, the change date is confirmed, and the setting value is not changed because the current date has not passed the change date. As described above, when the user logs in before the change date and time, the setting value is not changed to the changed address.

  (2) shows the change of the IP address when logging in to the terminal device 3 after the change date and time.

  If the server holding information cannot be acquired for some reason by the login after the server holding information registration in (a), the local holding information is the changed address before the execution of S206. In the environment information change process in S206, the change date / time is confirmed, and the current date / time has passed the change date / time, so the setting value is changed to the changed address. Thereafter, in S207, acquisition of the server holding information fails at the changed address. Before the execution of S214, local holding information already exists. In the environment information change process in S214, the change date and time is confirmed, the setting value is confirmed because the current date and time has passed the change date and time, and there is no difference in the setting value, so that the change is not performed. As described above, when logging in after the change, the setting value is changed to the changed address before connection to the file server 5.

  When the server holding information can be acquired by the first and subsequent logins after the server holding information registration in (b), the local holding information is the changed address before the execution of S206. In the environment information change process in S206, the change date / time is confirmed, and the current date / time has passed the change date / time, so the setting value is changed to the changed address. Thereafter, in S207, the server holding information is successfully acquired at the changed address. If there is a change other than the network connection setting in the server holding information, the change can be reflected in the environment information change process in S214. As described above, when logging in after the change, the setting value is changed to the changed address before connection to the file server 5.

  In this way, by including the change date and time in the server holding information and automatically acquiring the server holding information when the terminal device 3 logs in and changing the environment information, the end user can make special changes before and after the change date and time of the environment information. You do n’t have to do anything Therefore, troubles due to work mistakes by the end user do not occur, and the business impact on the end user and the load on the system operator can be greatly reduced.

  In addition, if the fixed address setting fails to connect to the file server 5, it is configured to connect to the file server 5 by switching to the dynamic address setting. However, the system operator does not need to go to the site and manually change the environmental information. This is because if the system operator can connect to the server by switching to the dynamic address setting, the end user may re-login the terminal device after the system operator has correctly registered the server holding information.

  The preferred embodiments of the environment information changing system and the like according to the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these naturally belong to the technical scope of the present invention. Understood.

DESCRIPTION OF SYMBOLS 1 ......... Environmental information change system 3 ......... Terminal device 5 ......... File server 7 ......... DHCP server 9 ......... Network 31 ......... Control part 32 ......... Storage part 33 ......... Media input / output Section 34 ......... Communication control section 35 ......... Input section 36 ......... Display section 37 ......... Peripheral device I / F section 38 ......... Bus 41 ......... Server holding information 51 ......... Host name 52 ... ...... Change date and time 53 .... IP address 54 .... Subnet mask 55 .... Default gateway 56 .... DHCP server availability flag

Claims (5)

An environment information change system configured by a terminal device and a server connected to the terminal device via a network and changing environment information of the terminal device after a predetermined change date and time,
The server
Means for storing server holding information including a change date and time indicating a change date and time of environment information and change information indicating a change content of the environment information for each identifier for identifying the terminal device;
With
The terminal device
Storage means for storing local holding information and setting values of environment information;
The current date and time, previous previous said generated at login if the past the modification time of local retention information, the set value of the environment information of the terminal device, the last time before the most recent generated at login First environment information changing means for changing to the change information of the local holding information;
Server holding information acquisition means for connecting to the server after the processing by the first environment information changing means and acquiring the server holding information corresponding to the identifier of the server;
When the server holding information can be acquired by the server holding information acquisition unit, a local holding information generation unit that generates the local holding information by copying the server holding information;
After the processing by the local holding information generation means, if the current date and time has passed the change date and time of the local holding information generated at the time of login, the setting value of the environment information of the terminal device is A second environment information changing means for changing to the change information of the local holding information generated at the time of login,
With
The terminal device, when logging in before and after the change date and time of the server holding information corresponding to the identifier of the terminal device, the first environment information changing means, the server holding information acquisition means, the local holding information generation means, It functions as said 2nd environment information change means. The environment information change system characterized by the above-mentioned.   2. The environment information change system according to claim 1, wherein when the server holding information acquisition unit cannot connect to the server by fixed address setting, the server holding information acquisition unit switches to dynamic address setting and connects to the server. . A terminal device comprising storage means for storing local holding information and setting values of environment information, and a change date and time indicating the date and time when the environment information is changed and a change indicating the change content of the environment information for each identifier for identifying the terminal device An environment information changing method for changing environment information of the terminal device after a predetermined change date and time in a system in which a server having storage means for storing server holding information including information is connected via a network. ,
The terminal device
The current date and time, previous previous said generated at login if the past the modification time of local retention information, the set value of the environment information of the terminal device, the last time before the most recent generated at login A first environment information change step for changing to the change information of the local holding information;
A server holding information acquisition step of connecting to the server after the processing by the first environment information changing step and acquiring the server holding information corresponding to the identifier of the server;
When the server holding information can be acquired by the server holding information acquisition step, a local holding information generation step of generating the local holding information by copying the server holding information;
After the processing by the local holding information generation step, when the current date and time has passed the change date and time of the local holding information generated at the time of the current login, the setting value of the environment information of the terminal device is A second environment information change step for changing to the change information of the local holding information generated at the time of login,
Run
The first environment information changing step, the server holding information acquisition step, the local holding information generation step, and the second environment at the time of login before and after the change date and time of the server holding information corresponding to the own identifier An environment information changing method characterized by executing an information changing step. A terminal device connected to a server via a network,
Storage means for storing local holding information and setting values of environment information;
The current date and time, previous previous said generated at login if the past the modification time of local retention information, the set value of the environment information of the terminal device, the last time before the most recent generated at login First environment information changing means for changing to the change information of the local holding information;
After the processing by the first environment information changing means, the server holding that acquires the server holding information including the change date and time indicating the date and time when the environment information is changed and the change information indicating the change contents of the environment information is connected to the server. Information acquisition means;
When the server holding information can be acquired by the server holding information acquisition unit, a local holding information generation unit that generates the local holding information by copying the server holding information;
After the processing by the local holding information generation means, if the current date and time has passed the change date and time of the local holding information generated at the time of login, the setting value of the environment information of the terminal device is A second environment information changing means for changing to the change information of the local holding information generated at the time of login,
With
Functions as the first environment information changing means, the server holding information acquiring means, the local holding information generating means, and the second environment information changing means at the time of login before and after the change date and time of the server holding information. A terminal device characterized by that. The program which makes a computer function as a terminal device of Claim 4.

Images