JP2005128652A - Composite server system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite server system that defines a plurality of individual terminals connected to one set server as servers among the plurality of terminals and can flexibly exchange and share files irrelevantly to states of a reception-side terminal and a transmission-side terminal. <P>SOLUTION: The system comprises the user terminals that a plurality of users own and the set server to which the user terminals are connected and which manages the plurality of user terminals; and a client terminal sends log-in information inputted from the client terminal to a 1st or 2nd individual server, which sends the log-in information to the set server, whose user authenticating means determines whether the log-in information is correct or incorrect to manage whether the client terminal is allowed to log in the individual server. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a composite server system in which a plurality of user terminals connected to one set server individually function as a server.

  Conventionally, a network system using a set server generally has a configuration in which a plurality of user terminals are connected to one server via electronic communication means. When these plural user terminals share and exchange files, several methods are used.

  As one, a public area is secured on a set server or an auxiliary storage device of a public server accessible to other users, and the other users can access the public area to access the above file. Sharing and file exchange are realized. This method can be used even when the user terminal is in an environment where the router is used, and has an advantage that the user who desires file sharing and file exchange can leave information in the public area even when the user is offline.

  As a method related to the above, the Anonymous File Transfer Protocol (anonymous) that uses a file FTP (File Transfer Protocol) server to enhance security and allows access to all registered users FTP) is known.

  As another example, a system that performs peer-to-peer connection between user terminals to perform file sharing and file exchange is also known.

  Instant messenger is well known as software that easily realizes file sharing and file exchange by peer-to-peer.

  In the case of using peer-to-peer, the terminal that transmits the file grasps the IP address of the receiving side, and transmits the file transmission authentication to the IP address. On the receiving side, by permitting this file transmission authentication, a file transmitted from the other side is received, and file sharing and file exchange are performed.

  When peer-to-peer is used, file transmission / reception is performed in a timely manner between terminals, so there is no limit on file capacity. Of course, since each terminal is online, an on-time chat function using text or the like is also realized.

  Patent Document 1 describes an invention for performing access control via a server for access control when using this peer-to-peer.

  In this document, when data is exchanged between two client terminals using a peer-to-peer connection, a data list is requested from the receiving terminal to the transmitting terminal, and the data list is received from the transmitting terminal in response. It is transmitted to the terminal, the access right is inquired to the server from the receiving side or the transmitting side terminal, and then data transmission / reception or access refusal is determined.

Japanese Patent Laid-Open No. 2003-122635

  However, the file exchange and file sharing methods using the public area of the server as described above have the advantages described above, but the user uses the auxiliary storage device of the public server that can be accessed by the set server or other users. It is necessary to sign a usage contract with the administrator of the server, and furthermore, the capacity that can be used is strictly defined, and it cannot be used beyond that. Since a contract is concluded, it is common to collect a usage fee, and there is no limit to the number of users that can be connected from the viewpoint of server load.

While the file exchange and file sharing methods using one peer-to-peer have the above advantages, both the sending and receiving sides need to be online for sending and receiving files, otherwise peer-to-peer connection itself is impossible. It is. Furthermore, when using a firewall, or in an environment where a global IP address cannot be used, for example, when using a router that cannot perform NAT (network address translation) conversion, etc. It was necessary to make a port opening setting and IP masquerading setting, which was not suitable for use by general users.

  In the system used in Patent Document 1, an access authority is inquired from the server, and an identifier (in the Patent Document 1, CPU-specific information, IP address is the latter part of paragraph [0061] It is troublesome to acquire access authority.

  The present invention has been made under the circumstances as described above, and an object of the present invention is to define individual terminals as servers among a plurality of terminals connected to one set server, and perform file exchange and file sharing. Provided is a composite server system that can be performed flexibly regardless of the situation of a receiving terminal and a transmitting terminal.

  The present invention relates to a composite server system in which a plurality of user terminals connected to one set server individually function as a server. The above object of the present invention is to provide a user terminal owned by a plurality of users and the user terminal. A set server that manages the plurality of connected user terminals, wherein one of the user terminals operates as a first personal server, and at least one of the other user terminals is the personal server. When operating as a client terminal of the first personal server as an independent server separate from the set server, one of the user terminals that is a client terminal of the first personal server is a second personal The user terminal that operates as a server and is at least the first personal server is a client of the second personal server. In a configuration that operates as a terminal, when the client terminal logs in to the first or second personal server, the client terminal stores the login information input from the client terminal in the first or second personal server. And the first or second personal server transmits the login information to the set server, and a user authentication unit of the set server determines whether the login information is correct or not. This is accomplished by managing logins to one or the second said personal server.

  Further, the object of the present invention is to transmit the file addressed to the personal server to the shared area provided in the personal server after the client terminal logs in to the personal server using a peer-to-peer connection. Alternatively, the system further includes a name server for notifying the address of the user terminal, and the name server notifies the address to the personal server in response to login information transmitted from the set server to the name server. Thus, when the peer-to-peer connection establishment unit provided in the user terminal establishes the peer-to-peer connection, or when the personal server or the client terminal cannot establish a peer-to-peer connection, it is within the shared area in the set server. By temporarily saving the file Alternatively, the personal server and the client terminal have a polling unit, the polling unit polls the shared area of the set server, and detects and receives a file for the personal server or the client terminal, Alternatively, when the user terminal further includes a MAC address storage unit, and a peer-to-peer connection is performed between the user terminal and another user terminal, there is a disturbance from the third user terminal to the peer-to-peer connection. The MAC address storage unit stores status information about the MAC address of the third user terminal, and the peer-to-peer connection establishment unit excludes the third terminal based on the status information, and thereafter Access to the user terminal by the third terminal By not establishing, or the name server further has a MAC address storage unit, the MAC address storage unit stores the MAC address associated with the user terminal as status information of the terminal, from the user terminal When the name server excludes the user terminal using the status information when there is a disturbance to the system, or the personal server further has a polling user designation unit, and the personal server is sent to the set server. In the polling, by receiving only the file of the user terminal designated by the polling user designation unit, or the personal server further has a special user setting unit and is set in the special user setting unit. The transmission from the user terminal When the personal server performs all the user terminals registered in the personal server, or the personal server has a control information determination unit that reads the control information attached to the file, and controls the file. When the information is attached, the control information determination unit executes the file based on the control information, or a plurality of the set servers are established, and the first set server manages When the user terminal transmits a file to the user terminal managed by the second set server, the first set server more effectively transmits the login information to the second set server. Achieved.

  According to the composite server system of the present invention, by starting each user terminal as a personal server, file exchange and file sharing can be performed by performing peer-to-peer connection when two specific terminals are online. . If one or both cannot establish peer-to-peer connection due to firewalls, routers, offline, etc., prepare a shared area to save the transmission data in the auxiliary storage medium of the set server, so that the data is reliably transmitted to the partner terminal be able to. Since this data is automatically deleted after a certain period of time or after transmission, the load on the server can be reduced at the same time.

  In addition, since each terminal is connected to the set server, the personal server can be started up very easily, and authentication when each terminal is recognized is also easy.

  Also, using this system, data including control information such as a file and the purpose and method of use of the file is sent to the other party in a push format, and the function of the other party's terminal is used to send the file based on the control information. It can be executed automatically. This makes it possible to transmit the file from a distance to the other party, play music on the other party's terminal, play an image, monitor the room, and the like.

  Furthermore, by executing this for a plurality of counterpart terminals, a program transmitted in advance or at that time can be executed in parallel or at the same time, and multiprocessing computing using a plurality of terminals can also be executed.

  The present invention implements peer-to-peer file sharing and file exchange centered on a personal server by using individual terminals of a plurality of user terminals connected to one set server as a server. Furthermore, it provides a composite server system that can share and exchange files even if the receiving terminal uses a firewall or router or is offline.

  Hereinafter, it demonstrates using drawing.

  FIG. 1 is a block diagram of a system according to the present invention.

  The system includes a plurality of user terminals 2 respectively owned by a plurality of users, a set server 1 to which the plurality of user terminals 2 are connected to manage login, file sharing, and the like from the set server 1 or the user terminal 2 It is composed of a VNS (Versatile Name Service) server 3 which is a name server that returns an IP address corresponding to the login information by inquiring the login information. At least one of the plurality of user terminals operates as the personal server 4, and at least one other user terminal 2 has the client terminal 5. Note that a generally known DNS (Domain Name System) server and a VNS server 3 included in the system are separate servers, and the VNS server 3 in the system is a unique server of the system. The domain names and IP addresses of the set server 1 and the VNS server 3 are registered in the DNS server, which will be described later.

A plurality of network networks may exist in units of one network network constituted by one set server 1.
FIG. 2 is a configuration diagram of the set server 1 of this system.

  In the set server 1, a login information receiving unit 11 for receiving login information to the personal server 4 input from the client terminal 3, and a login information transmitting unit 12 for transmitting the received login information to the VNS server 3. A user information receiving unit 13 that receives user information corresponding to the login information transmitted from the VNS server 3, a shared file storage unit 14 that stores a shared file transmitted from the client terminal 3 or the personal server 4, and a client terminal 3 or polling information receiving means 15 for receiving polling information from the personal server 4.

  FIG. 3 is a configuration diagram of the VNS server 3 of the present system.

  In the VNS server 3, a login information receiving unit 31 that receives login information from the set server 1, a user information transmitting unit 32 that transmits user information corresponding to the login information, and a user terminal connected to the set server 1 2, a user information database 33 in which user information such as login information and IP address is stored, and a MAC address storage unit 34 in which the MAC address of each user terminal 2 is stored.

  The login information stored in the user information database 33 described here may be stored in a user information storage unit (not shown) in the set server 1. In this case, after the set server 1 receives the login information and authenticates the received login information and the login information stored in the user information storage unit, the set server 1 sends the domain name of the user terminal 2 and the VNS server 3 Queries the IP address.

  Details of the MAC address will be described later.

  FIG. 4 is a system configuration diagram of the personal server 4 of the present system.

  The personal server 4 includes a user information inquiry unit 40 that inquires of the VNS server 3 about the domain name and IP address of the client terminal 5 of the personal server 4, a user information reception unit 41 that receives the user information, and the user A peer-to-peer connection establishment unit 42 that establishes a peer-to-peer connection with the client terminal 3 based on the information, a polling unit 43 that polls the set server 1, and a shared file that stores a file transmitted from the client terminal 3 to the personal server 4 Storage unit 44, control information management unit 45 that reads and manages control information in a file, client terminal recognition unit 46 that stores client terminal 3 of personal server 4, and set server 1 and VNS for the DNS server Queries the domain name and IP address of server 3 The DNS server inquiry unit 47 for, and a MAC address storage unit 48. for storing the MAC address.

  5 and 6 are flowcharts showing the flow of this system.

  In order to configure this system, the terminal needs to be a user terminal 2 managed by the set server 1. Therefore, the terminal uses the DNS server inquiry unit 47 to inquire about the domain names and IP addresses of the set server 1 and the VNS server 3 from the DNS server.

  Thereafter, the login ID and password, which are user information, are transmitted from the terminal to the set server 1 and the MAC address is transmitted to the VNS server 3 to register the user information (steps S101 and S102).

  The MAC address is a serial number inherent to the interface of the user terminal 2 and is acquired in advance by the set server 1 in order to detect unauthorized users of this system. The user information transmitted to the set server 1 is transmitted from the set server 1 to the VNS server 3 and stored in the user information database 33.

  After the user information registration or when the user information has already been registered, the user terminal 2 logs in to the set server 1 (step S103). The login ID and password described above are input from an input unit (not shown) of the user terminal 1 and transmitted to the set server 1, so that the login information receiving unit 11 of the set server 1 receives it. The received login information is transmitted again from the login information transmitting unit 12 to the VNS server 3. The login information receiving unit 31 of the VNS server 3 receives the information, detects the user information stored in the user information database 33, and transmits the user information to the user information transmitting unit 32. Here, the user information is information specific to the user terminal 2 including the IP address of the login terminal. The user information is received by the user information receiving unit 13 of the set server 1 from the VNS server 3 and the login of the user terminal 2 to the set server 1 is completed. Thereby, the user terminal 2 functions as the personal server 4.

  As described above, the set server 1 may include a user information storage unit in which user information for authenticating login information is stored. In this case, the user from the VNS server 3 is authenticated after the login information is authenticated. The IP address of the terminal 2 is acquired and a connection is established between the set server 1 and the terminal.

  The user terminal 2 recognized as the personal server 4 by the set server (hereinafter referred to as the personal server 4) polls the file stored in the shared file storage unit of the set server 1 using the polling unit 43. (Step S104). This file is associated with each personal server 4 and stored, and is stored in association with user information of the personal server 4. Note that the file is stored in the set server 1 when the destination terminal is offline, when a peer-to-peer connection cannot be established using a router or firewall, and the file is temporarily saved. I can leave.

  Whether there is a file is searched (step S105). If there is a file, it is downloaded to the terminal of the personal server 4 (step S106).

  The file is transmitted with control information always attached, but the received file also contains control information. The control information management unit 45 of the personal server 4 reads this control information and executes the file according to the control information (step S107). For example, in the case of a greeting card, a pop-up instruction is given on the desktop, or when executed in the background, the control information is read and executed in the background.

  Next, a file is transmitted from the personal server 4 to another user terminal (step S108).

  If the terminal is registered as the client terminal 3 in the personal server 4 (YES in step S109), simultaneous file transmission is performed to the client terminals stored in the client terminal authentication unit 46 (step S110). This uses the special user authority of the personal server 4 and enables the registered client terminal 3 to transmit a file using this authority.

  In this case, the client server information stored in the client terminal authentication unit 46 is transmitted from the personal server 4 to the VNS server 3, and user information is acquired from the VNS server 3. Thereafter, the peer-to-peer connection establishment unit 42 establishes a peer-to-peer connection with each terminal. As a result, a peer-to-peer connection is established with the counterpart client terminal, and the file is stored in the shared file storage unit 41 of the client terminal, thereby completing the transmission. If a peer-to-peer connection cannot be established, the file is transmitted to the shared file storage unit 44 of the set server 1.

  When the user terminal 2 transmits a file to a terminal that is registered as a personal server (a terminal where the personal server 4 is registered as the client terminal 3), the user terminal 2 transmits the file to the target personal server 4. The user terminal 2 needs to log in (step S111). In this case, login information is transmitted from its own terminal to the set server 1, and user information including the IP address of the personal server is received by the user information receiving unit 41 from the VNS server 3 via the set server 1. As a result, a peer-to-peer connection is established with the target personal server 4 using the peer-to-peer connection unit 42, and a file is transmitted (steps S112 and S114). When the peer-to-peer connection is impossible, the file is transmitted to the shared file storage unit 44 of the set server (step S113), and the target personal server 4 performs polling so that the file can be received.

  In order to ensure the security when the third terminal attacks the connection during the peer-to-peer connection, the personal server 4 (user terminal 2) includes a MAC address storage unit 48.

  In order for the third terminal to attack the peer-to-peer connection, it must be registered as the user terminal 2 of this system, and the MAC address is also disclosed on the system configuration. The personal server 4 stores this MAC address as status information in the MAC address storage unit 48, and the peer-to-peer connection establishment unit 42 eliminates the connection of the third terminal for the connection of the third terminal at that time. In addition, the peer-to-peer connection establishment unit 42 does not permit connection for subsequent connection requests from the third terminal. If the set server 1 collects this status information, it leads to security of the peer-to-peer connection.

  Next, a case where a file is received will be described (step S115).

  By establishing the peer-to-peer connection from the client terminal 3 side, the file is transmitted from the client terminal 3 to the shared file storage unit 44 of the personal server 4. The personal server 4 senses the reception of this file, and the control information management unit 45 reads the control information of the file and executes the transmitted file according to this control information (step S116). The control information is information that can be set in advance on the transmission side, such as sounding music or displaying a message, whereby various operations can be promoted on the terminal on the reception side.

  The personal server 4 polls the set server 1 at regular intervals (step S117), and also receives a file from the client terminal 3 that cannot establish a peer-to-peer connection in real time.

  If the process in this system is not terminated (NO in step S118), the process from step 108 is repeated again.

  Next, the identification relationship using the domains among the set server 1, the client terminal 3, and the personal server 4 in the above system will be described in detail below.

  The personal server 4 is one of the user terminals 2 of the set server 1 as described above, and the client terminal 3 is also one of the user terminals 2 of the set server 1 as described above. In order to clarify this, a domain in which the set server 1, the client terminal 3, and the personal server 4 are associated is used. By doing so, the client terminal 3 and the personal server 4 which are the user terminals 2 of the set server 1 are configured to be unique within the set server 1.

As an example,
Set server 1 domain name to “gsvr.express.jp”
Login name of personal server 4 is “makinen”
Login name of client terminal 3 is “vatanen”
The domain name of the VNS server 3 connected to the set server 1 is “vnsgsvr.express.jp”,
And

When the personal server 4 performs login registration to the set server 1 with “makinen”, the domain name of the personal server 4 is “makinen.gsvr.express.jp”. Similarly, when the client terminal 3 performs login registration to the set server 1 with “vatanen”, the login name of the client terminal 3 obtains the domain name “vatanen.gsvr.express.jp”.
That is, the domain name of each user terminal is
The format is user terminal login name + set server domain name.

  Each domain name is registered in the VNS server 3 together with the IP address of each terminal. The DNS server registers the domain names and IP addresses of the VNS server 3 and the set server. When the personal server 4 and the client terminal 3 make a peer-to-peer connection, the connection source terminal inquires of the VNS server 3 about the destination domain name and acquires the IP address of the destination terminal.

  This indicates that the user terminal 2 including the personal server 4 and the client terminal 3 connected to the set server 1 is unique within the set server 1 and has a unique domain name. Means that.

  In an environment using a dynamic IP address, the dynamic IP address can be used by notifying the changed IP address along with the domain name of the terminal itself from the user terminal 2 to the VNS server 3 and updating the registration. The system can be used in an environment.

  In addition, peer-to-peer connection is not possible when the destination terminal uses a firewall or is offline, but the IP address of the set server 1 can be obtained by inquiring the domain name of the set server 1 to the VNS server 3. The file can be acquired, and the file is temporarily stored in the set server 1.

  The domain name and IP address of the set server 1 and the VNS server 3 are registered in the DNS server, and the domain name and IP address of the user terminal 2 are stored in the VNS server 3, thereby forming one network. The

When the system is used between different set servers, the domain names of the set servers are different, so the domain names of the user terminals connected to each set server are also different and are identified.
The above identification relationship flow is attached to FIGS. 7 to 16 as reference diagrams.

It is a block diagram of this system concerning the present invention. It is a block diagram of the set server which concerns on this invention. It is a block diagram of the VNS server which concerns on this invention. It is a block diagram of the personal server which concerns on this invention. It is a flowchart showing the flow of this system concerning the present invention. It is a flowchart showing the flow of this system concerning the present invention. 5 is an identification relationship flow according to the present invention. 5 is an identification relationship flow according to the present invention. 5 is an identification relationship flow according to the present invention. 5 is an identification relationship flow according to the present invention. 5 is an identification relationship flow according to the present invention. It is an identification relationship flow concerning the present invention. 5 is an identification relationship flow according to the present invention. 5 is an identification relationship flow according to the present invention. It is an identification relationship flow concerning the present invention. 5 is an identification relationship flow according to the present invention.

Explanation of symbols

1 set server 2 user terminal 3 client terminal 4 personal server 5 VNS server 11 login information receiving unit 12 login information transmitting unit 13 user information receiving unit 14 shared file storage unit 15 polling receiving unit 31 login information receiving unit 32 user information transmitting unit 33 User information database 34 MAC address storage unit 40 User information inquiry unit 41 User information reception unit 42 Peer-to-peer connection establishment unit 43 Polling unit 44 Shared file storage unit 45 Control information management unit 46 Client terminal recognition unit 47 DNS server inquiry unit 48 MAC address storage Part

Claims (11)

A user terminal owned by a plurality of users, and a set server that manages the plurality of user terminals to which the user terminals are connected,
One of the user terminals acts as a first personal server;
When at least one of the other user terminals operates as a client terminal of the first personal server as an independent server different from the set server, the personal server,
One of the user terminals that are client terminals of the first personal server further operates as a second personal server, and at least the user terminal that is the first personal server is a client terminal of the second personal server. In a configuration that operates as
When the client terminal logs into the first or second personal server,
The client terminal transmits login information input from the client terminal to the first or second personal server, and the first or second personal server transmits the login information to the set server. A composite server system, wherein a user authentication unit of the set server determines whether the login information is correct or incorrect and manages login of the client terminal to the first or second personal server. 2. The composite server system according to claim 1, wherein after the client terminal logs in to the personal server, the personal server-directed file is transmitted to a shared area provided in the personal server using a peer-to-peer connection. The system further includes a name server for notifying the address of the user terminal;
In response to the login information transmitted from the set server to the name server, the name server notifies the personal server of the address so that a peer-to-peer connection establishment unit provided in the user terminal is connected to the peer-to-peer connection. The composite server system according to claim 2, wherein: 4. The composite server system according to claim 2, wherein when the personal server or the client terminal cannot establish a peer-to-peer connection, the file is temporarily stored in a shared area in the set server. 5. 5. The personal server and the client terminal have a polling unit, and the polling unit polls the shared area of the set server to detect and receive a file for the personal server or the client terminal. Complex server system. The user terminal further includes a MAC address storage unit,
When a peer-to-peer connection is made between the user terminal and another user terminal, when there is an interference with the peer-to-peer connection from a third user terminal,
The MAC address storage unit stores status information about the MAC address of the third user terminal;
6. The peer-to-peer connection establishment unit excludes the third terminal based on the status information and does not establish access to the user terminal by the third terminal thereafter. The compound server system described. The name server further has a MAC address storage unit,
The MAC address storage unit stores a MAC address associated with the user terminal as status information of the terminal, and uses the user terminal when the user terminal has interfered with the system. The composite server system according to claim 3, wherein the name server excludes the server. The personal server further has a polling user designation unit,
The composite server system according to claim 5, wherein the personal server receives only the file of the user terminal designated by the polling user designation unit when polling the set server. The personal server further has a special user setting unit, and the personal server performs transmission from the user terminal set in the special user setting unit to all the user terminals registered in the personal server. The composite server system according to claim 1. The personal server has a control information determination unit that reads the control information attached to the file,
The composite server system according to claim 2, wherein when the control information is attached to the file, the control information determination unit executes the file based on the control information. When a plurality of the set servers are established and the user terminal managed by the first set server transmits a file to the user terminals managed by the second set server,
The composite server system according to claim 1, wherein the first set server transmits the login information to the second set server.

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