JP2002026971A - Domain connection method and its system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a system that can assign a specific domain name to a user without using a rental server of a provider while utilizing dialup connection. SOLUTION: The method and system of this invention uses an identification database storing a user ID and an IP address corresponding to it, receives a dialup connection from the user so as to fixedly assign the IP address to the user thereby allowing the user to use a domain name, and receives a dialup connection from the user, uses a RAS(Remote Access Server) to dynamically assign an idle IP address and updates an IP address corresponding to the user of a DNS(Domain Name System) database with the assigned IP address so as to allow the user to use a fixed domain name.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a domain connection method and a domain connection system for the Internet, and more particularly, to a method and a system for assigning a fixed domain name to a user in a dial-up Internet connection.

[0002]

2. Description of the Related Art When a user uses the Internet, the most basic method is to lay a dedicated line from a provider or the like on a user's computer (server).

FIG. 7 shows a conceptual diagram in this case. The user terminals 10 of the plurality of users 1 are connected to the router 72 via the hub 71.
, And is always connected to the router 73 of the provider via the dedicated line 50. The router 73 is connected to the Internet 3 from a connected hub 74, and is connected to an authentication server 75 of a provider and a DNS (domain name system) server 77. In addition, although a system such as a mail server is naturally required, it is not necessary in relation to the description of the present invention, so that the description is omitted.

[0004] Each user is given a unique IP address and domain name, and the correspondence is DN
It is stored in the database 78 of the S server 77.
When the user accesses the Internet or accesses the user from the Internet, the router 73 obtains the IP address and domain name of the user by inquiring the DNS server 77.

[0005] However, the constant connection using the dedicated line as described above is not widely used especially by individual users because of the high cost and the like. Individual users
The dial-up connection method using a telephone line has been used exclusively. FIG. 8 shows a conceptual diagram in this case.

[0006] User 1 calls provider 2 via a modem (or TA or the like). That is, dial-up connection is performed using the telephone line 51. The RAS server (remote access server) 83 of the provider receives the dial-up from the user 1. The RAS server 83 inquires the authentication server 85 about the ID and the password transmitted from the user 1, and the authentication server 85 checks whether the ID and the password are OK or NG. Assigned IP address. This completes the connection.

A problem is that a user can use the Internet by receiving an IP address, but cannot use his or her own domain name.

There is also a method of giving a user a unique domain name by renting a server in a provider to a user while making a dial-up connection, but according to this method, the user can use his / her own server. In the provider, the degree of freedom is extremely low, and there is a problem from the viewpoint of privacy.

[0009]

Therefore, in order to solve the above-mentioned problems, the present invention provides a method for providing a user with a dial-up connection and without using a provider's rental server. It is an object of the present invention to provide a method and a system capable of assigning a unique domain name.

[0010]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is roughly divided into a method for enabling the use of a domain name by fixedly assigning an IP address to a user. System (hereinafter referred to as "first method and system"), and dynamically assigning IP addresses, that is, assigning a free IP address for each dial-up instead of a fixed IP address for each user, Provided is a method and system that enables a user to use a fixed domain name (hereinafter, referred to as “second method and system”).

[0011] With regard to the first method and system, claim 1
The described invention stores a user ID and a corresponding IP address in an identification database, stores a domain name and a corresponding IP address in a DNS database, receives dial-up from a user, and stores in the identification database. A fixed IP address is assigned to the user by using the obtained data, and when the user is accessed using a domain name, the DNS
This is a dial-up connection method for the Internet, characterized by associating a user ID with a domain name using data stored in a database.

According to a second aspect of the present invention, an identification database storing a user ID and an IP address corresponding to the user ID, a DNS database storing a domain name and an IP address corresponding to the user ID, and receiving dial-up from the user Dial-up receiving means, fixed IP address allocating means for fixedly assigning an IP address to a user using data in an identification database, and a DNS server for associating a domain name with a user using data in a DNS database. An internet dial-up connection system characterized by being configured.

As described above, by storing the fixed IP address for the user in the identification database and storing the correspondence between the domain name and the IP address in the DNS database, the dial-up connection can be established. Nevertheless, a fixed IP address and domain name can be assigned to the user.

[0014] Therefore, the user can install the server himself and manage it under his own domain name, and can obtain the IP address for this server from a third party.
Access can be received based on address or domain name.

The identification database and the DNS database need not necessarily be physically separate databases. In addition, it goes without saying that information other than the information described above may be stored together in the identification database and the DNS database. Further, the identification database does not necessarily need to include the authentication database, that is, a database for checking a password or the like may be provided separately.

Although this method and system basically assume a connection through a telephone line of a type that is always connected, it is also applicable to a type that is not always connected. If the user reconnects after disconnection, the same IP address is assigned to the user and the same domain name can be used.

[0017] With regard to the second method and system, claim 3
The described invention includes a step of receiving a dial-up from a user, a step of dynamically assigning an IP address to the user, and a step of assigning an IP address to the user in a DNS database.
Updating a P-address to the assigned IP address.

According to a fourth aspect of the present invention, there is provided a DNS database storing a correspondence between a domain name and an IP address,
Means for receiving dial-up from a user, dynamic IP address allocating means for dynamically allocating an IP address to the user, and I / O corresponding to the user in a DNS database.
And a DNS database updating means for updating the P address with the assigned IP address.

In these inventions, an IP address is dynamically assigned each time a dial-up connection is made.
The P address is not fixed for the user. But I
Each time a P address is assigned, the user can use a fixed domain name because the DNS database is rewritten so that the IP address corresponds to the domain name of the assigned user.

Incidentally, information other than the domain name and the IP address may be stored together in the DNS database.

In the case of the second method and system, since the system only needs to assign an IP address to the currently connected user, resources can be effectively used. This is different from the prior art in that a user's domain name can be used while using a dial-up connection and a rental server is not used.

[0022]

FIG. 1 is a diagram showing an outline of an embodiment of the first method and system. The user 1 makes a dial-up connection to the provider 2 using the terminal 10 and the modem 21. The domain connection method performed in the provider 2 and the domain connection system in the provider 2 are the first method and system. Hereinafter, the present invention as a system (hereinafter, referred to as “first system”) will be mainly described.

In the first system, a RAS server (remote access server) is used as dial-up receiving means.
23 is used. That is, the RAS server 23 receives a dial-up from the user 1.

Further, it has an authentication means 25 and a fixed IP address allocating means 26. Data necessary for authentication and assignment of a fixed IP address is stored in the identification database 27. FIG. 3 shows an example of this data. That is, the identification database in the present embodiment describes the user ID and password required for authentication, and the IP address fixedly assigned to each user ID.

The first system is a DNS server 28
And a DNS database 29. This has the same function as the case of connection by a dedicated line. D
In the NS database 29, at a minimum, the correspondence between the domain name and the IP address is described as shown in FIG.

The IP address and domain name described here are of course not inconsistent with the user ID and IP address stored in the identification database 27. That is, when the IP address of the user having the user ID “abc” stored in the identification database 26 is “203.141.128.1”, D
In the NS database 29, abc. co. jp 203.141.128.1. If the domain name of the user abc is abc. co. jp.

The first system is connected to the Internet 3 and can access another domain or receive access from another domain.

Next, the operation of the first system will be described with reference to the flowchart of FIG. 2 in relation to the user.

A user trying to connect to the Internet dials up the first system (S2).
01). The RAS server (dial-up receiving means) of the first system receives this (S202). The RAS server requests the authentication means to check the user ID and password sent from the user (S203).

Upon receiving the request, the authentication means (S20
4) The ID and password of the user are checked by referring to the data in the identification database (S205). If these are valid (S206), an "OK signal" is sent to the fixed IP address allocating means. (S20
7).

The fixed IP address allocating means receives this (S208), and returns an IP address described in the identification database corresponding to the ID and password to the RAS server (S209).

The RAS server receives the IP address (S210), and if it is within the range that can be assigned by itself, assigns it to the user, and the user receives this assignment (S211, S212).

As described above, since the IP address assigned by the user in the first system is a fixed one unique to the user, the user can use the IP address to access the Internet using the IP address as in the case of the dedicated line. And can be accessed.

Since a fixed IP address can be obtained,
With a DNS server having the same function as in the case of a dedicated line, an access can be made using a unique domain name, and access can be made. In addition, the user can install his / her own server and use e-mail or the like.

Next, an outline of an embodiment of the second method and system will be described with reference to FIG. The user 1 makes a dial-up connection to the provider 2 using the terminal 10 and the modem 31. The domain connection method performed in the provider 2 and the domain connection system in the provider 2 are a second method and system.
Hereinafter, the present invention as a system (hereinafter, referred to as “second system”) will be mainly described.

The second system uses an RAS server (remote access server) 33 as the dial-up receiving means 34. That is, the RAS server 33 accepts dial-up from the user 1. In addition, the RAS server 33 includes the dynamic IP address allocating unit 3
It also plays five roles.

Further, an authentication means 37 is provided. Data required for authentication is stored in the authentication database 38. Unlike the data of the identification database (FIG. 3) described in the first system, this data does not need to store the data of the IP address. The authentication database according to the present embodiment includes a user I required for authentication.
D, the password is described.

The second system is a DNS server 41
And a DNS database 40. This has the same function as the case of connection by a dedicated line. D
In the NS database 40, at a minimum, the correspondence between the domain name and the IP address is described as shown in FIG.

Further, the DNS database updating means 39
Having. This means that each time an IP address is assigned by the dynamic IP address assignment means 35, the assigned I
This is for replacing (overwriting) the P address with the old IP address of the user described in the DNS database.

The second system is connected to the Internet 3 and can access another domain or receive access from another domain.

Next, the operation of the second system will be described with reference to the flowchart of FIG. 6 in relation to the user.

The user trying to connect to the Internet dials up the second system (S6).
01). The RAS server (dial-up receiving means) of the first system receives this (S602). The RAS server requests the authentication means to check the user ID and password sent from the user (S603).

Upon receiving the request, the authentication means (S60
4) The ID and password of the user are checked by referring to the data in the identification database (S605). If the IDs and passwords are valid (S606), the RAS server (dynamic IP address allocating means) transmits "OK" A signal is transmitted (S607).

The dynamic IP address allocating means receives this (S608), allocates one of the unused IP addresses within a range that can be allocated by itself to the user, and the user receives this allocation (S609). , S61
0). Thus, the assignment of the IP address is dynamic and it is not guaranteed that the assigned IP address is the same as in the previous dial-up.

Next, the dynamic IP address assigning means
The assigned IP address is notified to the S database updating means (S611). The DNS database updating means receives the assigned IP address (S612),
The IP address column of the user in the DNS database is updated (S613). As a result, in the DNS database, the domain name of the user corresponds to the currently assigned IP address.

Therefore, this allows the user to:
Use of a fixed domain name is guaranteed.
This is because, when an external person accesses the Internet using the domain name through the Internet, the DNS server can search the DNS database to correspond to the IP address currently used by the user. In addition, even when using the second system, the user can install his / her own server and use mail or the like.

[0047]

As will be understood from the above, the first method and system of the present invention allow a user to use a fixed IP address and a domain name while using a dial-up connection. Can be made possible. In a second method and system of the present invention,
Allow users to use a fixed domain name while using a dial-up connection, and
It enables the system to use IP address resources efficiently.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of a system for fixedly assigning an IP address according to the present invention.

FIG. 2 is a flowchart showing an operation of a system for fixedly assigning an IP address according to the present invention.

FIG. 3 is a diagram showing a storage state of data in an identification database.

FIG. 4 is a diagram showing a storage state of data in a DNS database.

FIG. 5 is a diagram showing an outline of a system for dynamically allocating an IP address according to the present invention.

FIG. 6 is a flowchart showing an operation of a system for dynamically allocating an IP address according to the present invention.

FIG. 7 is a diagram showing an outline of a system using a dedicated line among conventional systems.

FIG. 8 is a diagram showing an outline of a dial-up system among conventional systems.

[Explanation of symbols]

 1 User 2 Provider 3 Internet 10 User Terminal 21, 22 Modem 23 RAS Server 24 Hub 25 Authentication Means 26 Fixed IP Address Assignment Means 27 Identification Database 28 DNS Server 29 DNS Database 31, 32 Modem 33 RAS Server 34 Dial-Up Accepting Means 35 Operation IP address assigning means 36 hub 37 authentication means 38 authentication database 39 DNS database updating means 40 DNS database 41 DNS server 50 dedicated line 51 telephone line

Claims (4)

[Claims] A user ID and a corresponding IP address are stored in an identification database, and a domain name and a corresponding IP address are stored in a DNS.
Database, receiving a dial-up from the user, assigning a fixed IP address to the user using the data stored in the identification database, and accessing the user using the domain name with the DNS. An internet dial-up connection method, wherein a user ID and a domain name are associated with each other using data stored in a database. 2. An identification database for storing a user ID and a corresponding IP address, a DNS database for storing a domain name and a corresponding IP address, dial-up receiving means for receiving a dial-up from a user, Fixed IP address allocating means for allocating a fixed IP address to a user by using data of an identification database; and a DNS server for associating a domain name with a user by using data of a DNS database. And Internet dial-up connection system. 3. Receiving a dial-up from a user, dynamically assigning an IP address to the user, and updating an IP address corresponding to the user in a DNS database to the assigned IP address. A dial-up connection method for the Internet. 4. A DNS database storing a correspondence between a domain name and an IP address; a means for receiving dial-up from a user; a dynamic IP address allocating means for dynamically allocating an IP address to a user; DNS for updating an IP address corresponding to the user with the assigned IP address
A dial-up connection system for the Internet, comprising: a database updating unit.