JP2002368781A - User location management domain name conversion system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user location management domain name conversion system that shares an access to a WEB server to each position ID by converting a domain name into an IP address on the basis of a location ID. SOLUTION: The user location management domain name conversion system is characterized in that a user terminal requests a DNS unit to convert a domain name for access to a WEB server, the DNS unit acquires a location ID of the user terminal from a database, determine an IP address of the WEB server on the basis of the location ID, the IP address of the user terminal and the domain name, returns a reply to the user terminal, and the user terminal accesses the WEB server on the basis of the determined IP address.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a location management system for a user terminal accessing a web server on the Internet and a user location management domain name conversion system for assigning web servers based on location information.

[0002]

2. Description of the Related Art GUI (Gra) on the Internet
WWW (World Wide) is a method of providing information using a physical user interface (WWW).
Web) is known. WWW information can be received by a user terminal having a WEB browser function by accessing a WEB server, and a URL (Uniform Resource) is required to access the WEB server.
Locator) to specify the location of the web server. The URL includes a scheme name, a domain, and a file name. The domain includes IP (Internet Pr)
otocol) address or a domain name, but usually a domain name is used to make the server name easy to understand.

When a user terminal having a web browser function designates a domain name to a web server on the Internet, it is necessary to convert the domain name into an IP address so that the computer can determine the domain name. The conversion function is performed by a DNS (Domain Name System) device. When receiving a domain name search request from the user terminal, the DNS device collates with the database and returns the IP address of the corresponding WEB server. The user terminal can access the WEB server with the IP address to which the reply was sent as the destination, and can see the information of WWW.

[0004] Multiple WEs using the same domain name
When the B server exists on the Internet and wants to notify the destination IP address to be notified to the user terminal to an IP address closer to the accommodation device, it is necessary to determine the position of the user terminal.

Also, a plurality of mirror servers (servers having the same contents, which are physically separated and have the same logical domain name and appear to be one from the user terminal) are installed in Osaka and Tokyo, When it is desired to group each location with West Japan and East Japan and distribute access to the server for each group, it is necessary to determine the location of the user terminal.

[0006]

However, since the IP address of the user terminal is uniquely and arbitrarily assigned without being related to the position where the user terminal exists, it is difficult to grasp the position from the IP address. Can not. Therefore, it is necessary to assign a position ID for identifying the user terminal and associate it with the IP address.

In addition, in the function of the DNS device, it is not possible to assign the IP address of the WEB server according to the position of the user terminal only with the domain name on the database and the IP address item of the WEB server. is there.

The present invention has been made in view of the above circumstances, and manages an IP address of a user terminal in association with a position ID, and converts a domain name into an IP address.
It is an object of the present invention to provide a user location management domain name conversion system that distributes access to a WEB server for each location ID by performing conversion based on the location ID.

[0009]

In order to achieve the above object, the present invention provides a plurality of web servers for providing information, a plurality of user terminals receiving information provided from the web servers, and The user accommodating device accommodated for connecting to the network and the domain name
In a domain name conversion system in which a DNS device for converting to a P address is connected by a network, the user terminal inputs a domain name for accessing the WEB server, and the DNS device converts the domain name to an IP address. A user terminal accommodation notifying means for notifying a user accommodation apparatus number (hereinafter referred to as accommodation ID) and user terminal IP address information when connected to the user accommodation apparatus; Means for storing the accommodation ID in association with the location information (hereinafter referred to as location ID) in the database, and means for storing the domain name, location ID, and web server IP address of the web server in the database in association with each other. Means and a user terminal,
In order to access the WEB server, the DNS device requests the DNS device to convert the domain name. The DNS device confirms the location ID of the user terminal from the database, and calculates the IP address of the WEB server based on the location ID and the domain name. Means for replying to the user terminal; and
Means for accessing a web server based on the determined IP address.

The present invention also provides the user location management domain name conversion system, wherein the accommodation ID and the user terminal IP address are stored in a database as means for passing a user accommodation device to the user terminal and transmitting a confirmation echo. And means for receiving a response echo from the user terminal, confirming the connection, and storing it in a database.

In the present invention, in the step of converting the domain name, means for calculating the position ID of the user terminal from the IP address of the user terminal, and converting the domain name when the user terminal IP address does not exist in the database. It is characterized by having means not provided.

According to the present invention, there is provided a user location management device for managing an IP address of a user terminal and a location ID in association with each other,
A user accommodating apparatus accommodating at least one user terminal to which an address is uniquely assigned, a DNS apparatus having a domain name-IP address conversion function based on a location ID, and a plurality of WEB servers connected by an Internet communication network It is characterized by having been done.

In the position management stage of the user terminal, the user accommodation device detects the IP address of the user terminal, and notifies the accommodation ID and the user terminal IP address associated with the user accommodation device from the user accommodation device to the user position management device. Means for holding the accommodation ID and the user terminal IP address received from the user accommodation apparatus, transmitting the confirmation echo to the user terminal IP address destination, and accommodating when a response echo is received from the user terminal. It is characterized in that the ID and the user terminal IP address are registered in the user accommodation management database.

The user position management apparatus is characterized in that a database in which the accommodation ID of the user accommodation apparatus and the position ID are associated in advance has been created.

The DNS apparatus is characterized in that a domain management database in which a position ID, a domain name, and an IP address of a WEB server are associated in advance.

At the stage of searching for an IP address based on the domain name and the position ID of the user terminal, when a DNS name request is issued from the user terminal, the DNS device checks the position ID of the user terminal. Means for inquiring the user location management device and the user location management database to determine a location ID from the user accommodation management database and the accommodation location management database based on the user terminal IP address.
Means for returning the position ID to the device, and the DNS device
D is received, the IP address is determined from the domain name and the position ID, and the IP address is returned to the user terminal.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(1) Overall Configuration of System FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, the user accommodation device 20, the user location management device 40, the DNS device 50, the WEB server 31, the WE
The B server 32 connects to the Internet 100 and is assigned a unique IP address within the network.

The WEB server 31 and the WEB server 32
When a file is requested from the user terminal 11 via the Internet 100, the requested file can be transmitted to the IP address of the user terminal 11.
Each of the WEB server 31 and the WEB server 32 is named with a domain name in addition to the IP address. This need not be unique.

The user accommodation device 20 is connected to the Internet 1
00 is connected to the user terminal 11 on the opposite side.
When the user terminal 11 transmits an IP packet to the Internet 100, the IP packet of the user terminal 11 of the packet is transmitted.
The address is notified to the user position management device 40.

The user terminal 11 is a terminal that receives an Internet service. The user terminal 11 is assigned a unique IP address on the Internet communication network. The user terminal 11 has W for browsing WWW information.
Equipped with an EB browser, DNS is entered by inputting a URL using a domain name from the WEB browser.
It requests the device 50 to search for the IP address of the WEB server from the domain name. After the response from the DNS device 50,
It is possible to request a file of WWW information to the IP address, receive the file from the WEB server, and browse the text.

The user location management device 40 holds two databases, the first of which is a user accommodation device ID and a location ID.
Storage location management database 41 for managing
The second is a user accommodation management database 42 that manages the IP address of the user terminal and the ID number of the user accommodation device to which the user terminal is connected. When the IP address and accommodation ID of the accommodated user terminal are notified from the user accommodation device 20, the user terminal has a function of confirming with the user terminal and registering it in the database when a response is received.

The DNS device 50 is connected to the Internet 100
The domain names of the web servers 31 and 32 above, and their respective server IP addresses and location IDs
And a domain management database 51 which is managed in association with. When there is a request for a domain name search from the user terminal, the user terminal has a function of confirming the position ID of the user terminal to the user position management device 40, searching the database based on the position ID, and returning the IP address to the user terminal. .

(2) Configuration of User Accommodation Device Next, the configuration of the user accommodation device 20 will be described. FIG. 2 is a block diagram illustrating a configuration of the user accommodation device. FIG. 1 and FIG.
This will be described with reference to FIG. The user accommodation device 20 includes the control unit 2
1, a user-side interface unit 22, an Internet-side interface unit 23, and a user-side interface accommodation monitoring notification program 24.

The user accommodating device 20 is provided with a user-side interface unit 22 and an Internet-side interface unit 23. The user terminal 11 is connected to the user-side interface unit 22, and the Internet 100 is connected to the Internet-side interface unit 23. .
The Internet-side interface unit 23 is connected to the WEB server 31 and the WEB
Server 32, user location management device 40, DNS device 5
0 is connected.

The user-side interface unit 22 and the Internet-side interface unit 23 are devices having a packet communication function of transmitting and receiving IP packets to and from the outside via a physical input / output port. The control unit 21 inputs the received IP packet from the user-side interface unit 22 to the control unit 21 and outputs the received IP packet from the control unit 21 to the Internet-side interface unit 23, and inputs the received IP packet to the control unit 21 from the Internet-side interface unit 23.
It has a function of transmitting from the control unit 21 to the user-side interface unit 22.

The user-side interface accommodation monitoring notification program 24 monitors an IP packet received from the user-side interface 22 through the control unit 21 and identifies the IP address of the user terminal 11 from the IP packet. It has a function of transmitting from the control unit 21 to the Internet interface 23.

(3) User Position Management Device Next, the configuration of the user position management device 40 will be described. FIG. 3 is a block diagram showing the configuration of the user location management device. This will be described with reference to FIG.

The user position management device 40 includes a control unit 43,
It comprises an Internet input side interface unit 44, an Internet output side interface unit 45, a program unit 46, a user accommodation management storage unit 47, and an accommodation device management storage unit 48.

The Internet input interface 44 and the Internet output interface 45 have a packet communication function of transmitting and receiving IP packets to and from the outside via a physical input / output port.

The user accommodating management storage 47 stores the user IP
The data in which the address and the accommodation ID of the user accommodation device 20 are associated is stored.

The accommodation device management storage unit 48 stores data in which the accommodation ID of the user accommodation device 20 is associated with the position ID.

The program section 46 includes a user accommodation management storage section 47, a program for writing to a database in the accommodation apparatus management storage section 48, and a user based on the user terminal IP address and accommodation ID transmitted from the user accommodation apparatus 20. It has a program for confirming to the terminal and a program for expanding an IP packet and identifying an IP address and a position ID.

The control unit 43 has a function of transferring packets to the program unit 46, writing the packets to the storage units 47 and 48, and transmitting and receiving IP packets to and from the interface units 44 and 45.

(4) Configuration of Storage Unit of User Position Management Device Next, the database configuration of the storage units 47 and 48 of the user position management device 40 will be described. FIG. 4 shows storage units 47 and 4.
8 is a data format showing the contents of the database in FIG.

The user accommodation management database 42 is a data format indicating the contents of the database in the user accommodation management storage unit 47. As shown in the figure, the user accommodation management database 42 stores attribute data indicating the attributes of the user terminals such as the accommodation ID of the user accommodation device for each user terminal IP address.

The accommodation position management database 41 is a data format indicating the contents of the database in the accommodation device management storage unit 48. As shown in the figure, in the accommodation position management database 41, attribute data indicating attributes of the user accommodation device, such as a position ID, is stored for each accommodation ID of the user accommodation device.

(5) DNS Device Next, the configuration of the DNS device 50 will be described. FIG. 5 is a block diagram showing the configuration of the DNS device. This will be described with reference to FIG. The DNS device 50 includes a control unit 52, an Internet input interface unit 53, an Internet output interface unit 54, a program unit 55, and a domain name storage unit 56.

The Internet input side interface unit 53 and the Internet output side interface unit 54 have a packet communication function of transmitting and receiving IP packets to and from the outside via a physical input / output port.

The domain name storage unit 56 stores data in which the domain name is associated with the IP address and the position ID of the web server.

In the program section 55, the IP of the user terminal
It has a function of checking with the user position management device 40 to determine a position ID from an address. Also, the domain name of the user terminal search request and the location ID of the user
And a program for searching the database of the domain name storage unit 56 and determining the IP address based on the IP address.

The control unit 52 has a function of transferring a packet to the program unit 55, writing to the storage unit 56, and transmitting and receiving IP packets to and from the interface units 53 and 54.

(6) Configuration of Storage Unit of DNS Device Next, the database configuration of the domain name storage unit 56 will be described. FIG. 6 is a data format showing the contents of the database 51 in the storage unit 56.

As shown in the figure, the domain management database 51 stores a server IP address,
Attribute data indicating the attribute of the domain name such as the position ID is stored.

(7) Description of Operation A method of acquiring the accommodation ID of the user terminal by the user position management device 40 will be described. FIG. 7 shows the user terminal 11,
The exchange between the user accommodation device 20 and the user location management device 40 is shown.

[Registration of User Accommodation Management Database 42] The user accommodation device 20 receives an IP packet from the user terminal 11 (X1), and
Determining the IP address of the user terminal, own accommodation ID
And the IP address of the user terminal and the user location management device 40
(X2). The user location management device 40 searches the user accommodation management database 42 to confirm whether the same IP address is registered or the same accommodation ID is not registered. To check if it is connected to the device 20
It passes through the user accommodation device 20 and requests a confirmation echo from the user terminal 11 (X3). Upon receiving the confirmation echo from the user position management device 40, the user terminal 11 returns a response echo to the user position management device 40 (X4). After receiving the response echo and confirming the connection, the user location management device 40 registers the IP address and the accommodation ID in the user accommodation management database 42 in the user accommodation management storage unit 47. Also,
When the response echo from the user terminal 11 cannot be confirmed,
It does not register in the user accommodation management database 42.

(8) Domain Name by DNS Device-
An IP address conversion method will be described. FIG. 8 shows a user terminal 11, a DNS device 50, and a user location management device 40.
Shows the exchange by

When the DNS device 50 receives a domain name search request from the user terminal 11 (X11), the DNS device 50 sends the position ID of the user terminal IP address to the user position management device 40.
(X12). User location management device 40
Calculates the location ID of the user terminal from the user terminal IP address with reference to the user accommodation management database 42 and the accommodation location management database 41, and then obtains the DNS device 5
0 (X13), the DNS device 50 sends the domain management database 51 stored in the domain name storage unit 56.
, Based on the domain name and the position ID, and notifies the user terminal 11 of the IP address (X14). If the user terminal IP address does not exist on the domain management database 51, the domain name is not converted.

(9) The operation of the program section 46 of the user location management device to determine the location ID from the IP address requested by the DNS device 50 will be described. FIG.
5 shows a flowchart by the program unit 46 of the user position management device 40.

First, it is confirmed whether or not the IP address is registered in the user accommodation management database 42 (S1).
If the P address is not registered in the user accommodation management database 42, the location ID is not registered (S2).
When the IP address is registered in the user accommodation management database 42, the accommodation ID is searched from the user accommodation management database 42 (S3), and the position ID is searched from the accommodation device management storage unit 48 from the accommodation ID (S4). The location ID is notified to the DNS device 50 (S5).

(10) The program unit 5 of the DNS device 50
In 5, an operation of calculating an IP address from a domain name will be described. FIG. 10 is a flowchart illustrating the operation performed by the program unit 55 of the DNS apparatus 50.

First, the IP address of the user terminal for which a domain name search request has been made is confirmed to the user location management device 40 for the location ID (S11). If the location of the user terminal has not been registered (no confirmation), it is displayed on the Internet. Other DNS
Check with the device (S12). If the position of the user terminal has been registered (confirmed), the domain management database 51
The registration of the domain name is searched (S13), and if it is not registered (no registration), it is confirmed to another DNS device on the Internet (S12). If registered, search for IP address by domain name and location ID,
The address is notified (answered) to the user terminal (S14).

[0053]

As described above, according to the present invention, it has conventionally been impossible to grasp the position from the IP address.
By associating D with the IP address of the user terminal, the position of the user terminal can be ascertained.

Further, since the DNS device of the present invention can provide the conversion from the domain name to the IP address for each position of the user terminal, access to a plurality of WEB servers using the same domain name can be prevented. It is possible to distribute and provide the information for each position of the user terminal.

[Brief description of the drawings]

FIG. 1 is an overall configuration block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a user accommodation device according to an embodiment of the present invention.

FIG. 3 is a block diagram illustrating a configuration of a user location management device according to an embodiment of the present invention.

FIG. 4 is a data format showing an accommodation position management database and a user accommodation management database according to an embodiment of the present invention.

FIG. 5 is a block diagram illustrating a configuration of a DNS device according to an embodiment of the present invention.

FIG. 6 is a data format showing a domain management database according to an embodiment of the present invention.

FIG. 7 is a sequence diagram illustrating an operation of acquiring position information of a user terminal according to an embodiment of the present invention.

FIG. 8 shows a domain name according to an embodiment of the present invention.
FIG. 7 is a sequence diagram illustrating an IP address conversion operation.

FIG. 9 is a flowchart illustrating an operation of calculating a position ID from an IP address according to an embodiment of the present invention.

FIG. 10 is a flowchart illustrating an operation of calculating an IP address from a domain name according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 User terminal 20 User accommodation device 31 WEB server 32 WEB server 40 User location management device 41 Accommodation location management database 42 User accommodation management database 50 DNS device 51 Domain management database 100 Internet

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Keiichi Hishikawa 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo F-term within Nippon Telegraph and Telephone Corporation (reference) 5K030 HC01 HD09 JA07 JT02 LE17 5K033 CB01 CB09 DB12 DB14 EC03

Claims (3)

[Claims] 1. A plurality of WEB servers for providing information, a plurality of user terminals receiving information provided from the WEB server, a user accommodating apparatus accommodating the user terminals for connection to a network, and a domain name To I
In a domain name conversion system in which a DNS device for converting to a P address is connected by a network, the user terminal inputs a domain name for accessing the WEB server, and the DNS device converts the domain name to an IP address. A user terminal accommodation notifying means for notifying information of a user accommodation apparatus number (hereinafter referred to as accommodation ID) and a user terminal IP address when connected to the user accommodation apparatus; and information unified from the user terminal accommodation notification means. Means for storing information in a database, means for storing the accommodation ID and location information (hereinafter referred to as location ID) in a database in association with each other, and associating a domain name of a web server, a location ID, and a web server IP address with the database. Means for storing, and the user terminal To access requests the conversion of the domain name to the DNS system, DNS apparatus checks the position ID of the user terminal from the database,
A means for determining an IP address of a WEB server based on the position ID and the domain name and responding to the user terminal; and a means for the user terminal to access the WEB server based on the determined IP address. User location management domain name conversion system. 2. A means for storing an accommodation ID and a user terminal IP address in a database, means for transmitting a confirmation echo to the user terminal through the user accommodation device, and receiving a response echo from the user terminal and confirming the connection. 2. The user location management domain name conversion system according to claim 1, further comprising means for storing the name in the user location management domain name. 3. The step of translating the domain name, wherein the position ID of the user terminal is converted from the IP address of the user terminal.
2. The user location management domain name conversion system according to claim 1, further comprising: means for determining a password, and means for not performing domain name conversion when the user terminal IP address does not exist in the database.