KR20040110957A - Method of searching web contents using P2P(Peer to Peer) Technology and apparatus thereof - Google Patents

Abstract

The present invention relates to a method and apparatus for searching web content using peer to peer (P2P) technology.

In the content retrieval method according to the present invention, the peer terminal indexes the content information stored therein first, the hub terminal indexes the secondary by receiving the primary indexing information, and the P2P server receives the above secondary indexing information. After the third indexing, if there is a predetermined search request, the method includes directly obtaining the content to be searched from the peer terminal using the first, second and third indexing information.

According to the present invention, it is effective to use resources that are not being used in the peer terminal, and as the content to be searched can be provided from the peer terminal instead of the central server, the search speed is increased and the Internet can be easily accessed using the peer terminal. There is an effect that can distribute predetermined content on the screen.

Description

Method of searching web contents using Peer to Peer technology and apparatus about

The present invention relates to a method and apparatus for searching web content using peer to peer (P2P) technology.

The field to which the present invention belongs is related to Internet web services and P2P services based on open networks such as the Internet. In more detail, the present invention relates to a method and apparatus for searching for web contents in the same P2P group as well as broadcasting a web page and file over the Internet through a web server operation in a user's terminal.

Looking at the structure of the conventional web services and P2P services, both web services and peer-to-peer services have a service-oriented structure. Both define the purpose of computing and define the communication protocol. These two services are designed to be as separated as possible from the existing protocols, regardless of the layer imposed. However, the protocols proposed for P2P services are currently in their infancy from the evolutionary point of view. Even though it has a specific network model of SUNMICRO SYSTEM, it has not been stabilized yet, and since P2P service companies have various protocols, they cannot find compatibility with each other. However, both services are pursuing the use of XML to pursue distributed computing and sharing of information.

Conceptual structure of web service is divided into network part, interface part and search part. JXTA's CORE, the most advanced peer-to-peer model of peer-to-peer comparison, is largely a forwarder's architecture for delivering network protocols, security mechanisms, routing, and information. JXTA also has the concept of a domain, such as who is a peer, where the peer's group is, and in which group. 1 and 2 are reference diagrams for explaining a search method proposed by a conventional web service.

However, at present, there is no progress on technology in which web and P2P services are integrated in Korea, and the standardization of web services has been standardized only, but the need for integrating them has already been verified globally. Progress is taking place. EbXML from OASIS Group is a good example.

Generally speaking, web services have only emphasized the transfer of information from one company's server to another. But Web services have evolved without considering some important points. In other words, they have evolved, overlooking areas covered by peer-to-peer services, such as employees' Edge Computers. In other words, it has been developed without considering the user of the edge of the company or the terminal they are using, not the management aspect of the company.

A more precise analysis of existing business processes necessitates the integration / convergence of external business processes and internal business workflow systems. This is the source of the need for integration / convergence of Web services and peer services. From a technical point of view, this means that Web services and peer-to-peer services must complement each other and work closely together. As described above, the new service model will obviously go through a single convergence process, whether it is called a web service or a peer-to-peer service, which is expected to continue to evolve into a new, more scalable model. Until now, no satisfactory model has been presented.

On the other hand, the conventional DNS hosting technology domain name service is a technology that can operate a domain server even if the user has a dynamic IP address to operate a web server, FTP, media server, etc. Currently, the representative service among domestic companies There are CODNS, DDNS, XDNS, etc. It forwards the floating IP address of the existing user to their DNS service server and monitors it in real time at the service DNS service server side and saves it as DB even if the IP address of the user changes. It is a service that connects domain name. However, the problem with the conventional service is that it is difficult for users to easily apply it because they have not developed many application programs that can actually use the service. This is a part that cannot be easily used by users because the basic knowledge about setting-up of MS (MicroSoft) NT-based IIS server and MS (MicroSoft) server management as well as professional hosting is possible. In addition, MS (MicroSoft) has created a program called PWS (Personal Web Server) to provide PC users with web hosting, and provided it as a service pack for MS Windows 98. There is still a lot of inconvenience to use.

In addition, the conventional P2P shared folder service has not been shared on the web at all, which is all shared only in a limited space from the user's point of view (community that can be entered only through a program registered and downloaded by the user). There is a problem that is inconvenient to use.

In summary, in the conventional C / S (Client / Server) type of service, since all the services are made around the server, the load of the server is too high, and there is a problem in that the resources of the user terminal (peer terminal) are not properly utilized. In addition, in order for a user to publish his or her desired content on the Internet, the user must register with the server. However, there is a problem in that it takes too much time and money.

In addition, the conventional P2P type service has a problem in that it uses a resource (eg, content naturally obtained while the user surfs the Internet) of the user terminal (peer terminal).

In addition, the conventional DNS service or shared folder service is too complicated and difficult to use for the general public, the usage of the non-expert, the content of the service also has a limited problem.

An object of the present invention is to provide a method for indexing content information in a peer terminal.

Another object of the present invention is to provide a method for indexing content information in a hub terminal.

Another object of the present invention is to provide a method of indexing content information on the Internet.

Another technical problem to be achieved by the present invention is to provide a method for providing a search service in a P2P server.

Another object of the present invention is to provide a method for providing a search service in a hub terminal.

Another object of the present invention is to provide a content retrieval service method.

Another technical problem to be achieved by the present invention is to provide a peer terminal.

Another technical problem to be achieved by the present invention is to provide a hub terminal.

Another technical problem to be achieved by the present invention is to provide a P2P server.

Another technical object of the present invention is to provide a network.

1 and 2 are reference diagrams for explaining a search method proposed by a conventional web service.

3 is a reference diagram illustrating a search method in a conventional peer to peer model structure.

4 is a reference diagram showing a stack structure of each part when the web and P2P service are integrated.

5 is a conceptual view of a service when a web and a P2P service are integrated.

6 is a reference diagram illustrating an overall service mechanism according to the present invention.

7 is a reference diagram illustrating a DNS service applied to the present invention.

8 is a reference diagram illustrating a process of registering content stored in the peer in an index according to the present invention.

9 is a reference diagram illustrating an entire process of indexing content stored in the peer according to the present invention.

10 is a reference diagram illustrating a process of registering a document / file on the web and sharing among multiple users according to the present invention.

11 shows a configuration of an entire network to which the present invention is applied.

12 is a reference diagram conceptually illustrating a structure of a network according to the present invention.

13 is a reference diagram for explaining a search process according to the present invention.

14 is a flowchart of a preferred embodiment of a process in which a peer terminal first registers with a user in a service server according to the present invention.

15 is a flowchart of a preferred embodiment of a process of indexing at a peer terminal according to the present invention.

16 is a flow chart of a preferred embodiment of a process of indexing at a hub in accordance with the present invention.

17 is a flowchart of a preferred embodiment of a process of indexing in a P2P server according to the present invention.

18 is a flowchart of a preferred embodiment of the searching process according to the present invention.

19 is a block diagram of a preferred embodiment of a peer computer (terminal) according to the present invention.

20 is a block diagram of a preferred embodiment of a hub computer according to the present invention.

21 is a block diagram of a preferred embodiment of a P2P server according to the present invention.

The method for indexing content information in a peer terminal according to the present invention for solving the above problems is (a) receiving and storing a predetermined content file corresponding to any one of files storing text, voice or image information from a user. (B) extracting keyword information from the stored content file, and (c) generating indexing information including keywords of the content file and storing the indexed information in the index file.

In addition, the step (a) of the method for indexing the content information in the peer terminal, characterized in that for storing the content file including a cookie (COOKIE) file obtained from a computer on another Internet by the user using the Internet through the peer terminal You can do

In addition, the step (a) of the method for indexing content information in the peer terminal may be characterized in that the predetermined content is received and stored from another computer via FTP over the Internet.

In addition, the step (a) of the method for indexing the content information in the peer terminal includes a survey that may be included in the file content or name of any file that stores text, voice or image information, or description information about the file. Storing noise information which is a list of grammatical functional words in a database, wherein step (b) comprises: (b1) extracting meaningful words from the stored content file; and (b2) extracting the extracted content files. And extracting keyword information consisting of words from which noise information stored in the database among words is extracted.

The method of indexing content information in the peer terminal may further include (d) transmitting the indexed information to a hub terminal that collects and manages indexing information of predetermined peer terminals.

In addition, the step (a) of the method for indexing the content information in the peer terminal further comprises the step of having a database for storing the keyword information for each category, which is a keyword corresponding to a pre-categorized category, the step (c) (c1) determining a category of the content file by obtaining a similar degree between the extracted keyword information and keyword information for each category of the database; and (c2) if the determined category matches the preset category information, And storing indexing information including keywords of the content file in the index file.

The method for indexing content information in a hub terminal according to the present invention for solving the above problems is (a) receiving and storing a predetermined content file corresponding to any one of files storing text, voice or image information from a user (B) extracting keyword information from the stored content file, (c) generating indexing information including a keyword of the content file and storing it in a first index file, (d) step (a) Through (c) receiving the indexing information performed by the other peer terminal from another peer terminal that has indexed the content information owned by the peer, and the indexing information and the first index file provided from the other peer terminal Storing the stored indexing information in a second index file.

In addition, the step (a) of the method for indexing the content information in the hub terminal is characterized in that the user stores the content file including a cookie (COOKIE) file obtained from a computer on another Internet by using the Internet through the peer terminal You can do

In addition, the step (a) of the method for indexing the content information in the hub terminal includes a survey that may be included in the file content or name of any one of the files storing the text, voice or image information or the description information about the file. Storing noise information which is a list of grammatical functional words in a database, wherein step (b) comprises: (b1) extracting meaningful words from the stored content file; and (b2) extracting the extracted content files. And extracting keyword information consisting of words from which noise information stored in the database among words is extracted.

In addition, the step (a) of the method for indexing the content information in the hub terminal further comprises the step of having a database for storing the keyword information for each category, which is a keyword corresponding to a pre-categorized category, the step (c) (c1) determining a category of the content file by obtaining a similar degree between the extracted keyword information and keyword information for each category of the database; and (c2) if the determined category matches the preset category information, And storing the indexing information including the keyword of the content file in the first index file.

The method for indexing content information in the hub terminal may further include (e) transmitting the indexing information stored in the second index file to a P2P server that collects and manages indexing information of predetermined hub terminals. can do.

In order to solve the above problems, a method of indexing content information on the Internet according to the present invention includes (a) a file storing text, voice, or image information from a user in a peer terminal that stores predetermined content. Receiving and storing a predetermined content file, (b) extracting keyword information from the stored content file at the peer terminal, generating indexing information including the keyword, and storing the index information in the index file, and (c) Receiving indexing information from a peer terminal of the hub terminal and indexing for each peer terminal through the steps (a) and (b) storing the indexing information for indexing the content information owned in the first index file, (d) The hub terminal receives indexing information of the peer terminal from the peer terminal. Storing the provided indexing information and the indexing information stored in the first index file in a second index file and indexing the index information; and (e) receiving the indexed information from a predetermined hub terminal and re-indexing the index information. receiving indexing information stored in the second index file from the hub terminal of step (d) and storing the indexing information in its index file.

The method for providing a search service in a P2P server according to the present invention for solving the above problems includes (a) first index information about content stored in a content providing peer terminal storing predetermined Internet content. (B) providing a database storing third index information indexed by each hub terminal with second index information stored by a predetermined hub terminal storing second index information classified according to categories included; Receiving predetermined search term information about a content to be searched from a user through a user, outputting a search result corresponding to the search word, and receiving the search word from a peer terminal provided to the user; and (c) content corresponding to the search word. Recalling a hub terminal that stores information about a peer terminal having a Searching and reading an database, and transmitting information of the read hub terminal to the peer terminal; and (d) receiving search result information, which is content corresponding to the search word, from the hub terminal, and receiving the search result information. It is characterized in that it comprises the step of creating a document of a certain predetermined form and transmitting it to the peer terminal.

In the step (d) of the method for providing a search service in the P2P server, the search result information, which is the content corresponding to the search word, is received from the hub terminal, and the search result information is created as an HTML document to the peer terminal. It may be characterized in that the transmission.

Method for providing a search service in a hub terminal according to the present invention for solving the above problems (a) the first index information about the content stored in the content providing peer terminal that stores the predetermined Internet content is the content (B) receiving predetermined search term information regarding content to be searched through the Internet from a user and outputting a search result corresponding to the search term; Receiving the search word from a search request peer terminal provided to the user, (c) searching and reading the database of a content providing peer terminal storing content corresponding to the search word, and reading the read content providing peer Transmitting the search word to a terminal and (d) the read Receiving search result information, which is content corresponding to the search word, from a content providing peer terminal, and converting the search result information into document information of a predetermined form and transmitting the search result to a P2P server that provides the search request peer terminal; Characterized in that it comprises a.

According to an embodiment of the present invention for solving the above problems, a predetermined content file is stored, and a content providing peer terminal receiving a search request for the content from the outside and reading and providing the content receives a keyword from the content file. (B) a first index DB for storing the first indexing information extracted for each content and indexing the content, and (b) receiving the first indexing information from the content providing peer terminal and providing the indexing information at a hub terminal for managing the indexing information; (C) a second index DB for storing second indexing information associated with the content providing peer terminal, and (c) the received index at a P2P server receiving and managing the second indexing information from the hub terminal; A third index DB that stores third indexing information associated with the second indexing information with the hub terminal; And (d) receiving a search word used to search for a predetermined content from a user, receiving a content corresponding to the search word, and outputting the search word to the user. Transmitting to the P2P server, (e) the P2P server searching the second indes DB for a hub terminal that stores the first indexing information of the content providing peer terminal that stores the content corresponding to the search word; Reading and transmitting the information about the read hub terminal to the search request peer terminal, (f) the search request peer terminal transmitting the search word to the received hub terminal, and (g) the search term. The received hub terminal searches for the second index DB and stores a content corresponding to the search word. Reading a server and providing the search word to the read content providing server; and (h) the content providing peer terminal receiving the search word is based on the search word and the information stored in the first index DB. Extracting the content corresponding to the content, reading the content from the content storage unit, generating search result information, and transmitting the search result information to the hub terminal; (i) the hub terminal provided with the search result information is searched to the P2P server; Transmitting and transmitting result information; (j) the P2P server converts the received search result information into an HTML document and transmits the result to the search request peer terminal; and (k) the search request peer terminal transmits the received HTML. And outputting the document to the user.

In addition, in the step (h) of the method for providing a search service in the hub terminal, the content providing peer terminal receiving the search word may include content corresponding to the search word based on the search word and information stored in the first index DB. Extract the content, read the content from the content storage unit, generate search result information, and transmit the search result information to the P2P server, and the step (i) may not be performed.

The peer terminal according to the present invention for solving the above problems is a predetermined content file corresponding to any one of a file transmitting and receiving unit for transmitting or receiving necessary information through a communication network including the Internet, a file storing text, voice or image information. A content storage unit configured to receive and store an input, extracts a keyword from a content file stored in the content storage unit, and stores indexing information associated with the extracted keyword and the information about the content file in an index DB, An index management unit which transmits the indexing information to the hub terminal which integrates and manages the indexing information, receives a predetermined search word from the hub terminal through the transceiver and the transceiver, and the content corresponding to the search word is stored in the index DB. Search and extract the extracted Reads the content information from the content storage unit is characterized by comprising: a web server for transmitting to the hub terminal.

In addition, the peer terminal receives a predetermined search word from a user, and receives the search word from the input and output unit and the input and output unit for outputting the search result information corresponding to the search word received through the transmission and reception to the user, the search term Transmits the search word to the hub terminal when the information is transmitted to the P2P server providing a P2P search service through the transceiver unit and then receives information about the hub terminal managing contents corresponding to the search word from the P2P server. The apparatus may further include a search processing unit which receives the search result information, which is the content information searched by the hub terminal, through the P2P server after providing a request for searching for the content corresponding to the information, and provides the search result information to the input / output unit.

Also, the peer terminal requests to register itself with the P2P server through the transceiver, receives and stores the domain name assigned by the P2P server from the P2P server through the transceiver, and periodically stores its own dynamic IP. It may be characterized in that it further comprises a DNS processing unit for performing a function of checking and transmitting to the P2P server.

The hub terminal according to the present invention for solving the above problems is a transceiver for transmitting or receiving necessary information through a communication network including the Internet, the information of the contents in the peer terminal from a predetermined peer terminal that stores the predetermined content The second index management unit receives the indexing information, which is indexed through the transceiver, and stores a second index DB in association with the peer terminal and the indexing information, and receives a predetermined search word through the transceiver. And a replicating unit for retrieving a DB, reading information about a peer terminal storing content corresponding to the search word, and transmitting the search word to the read peer terminal.

The hub terminal may be configured to transmit the content content to a P2P server that manages the content content through information stored in the second index DB when the replicating unit receives content content corresponding to the search word from the peer terminal. It may be characterized by performing a further function.

The hub terminal may include a content storage unit for receiving and storing a predetermined content file corresponding to any one of a file storing text, voice, or image information, and extracting a keyword from the content file stored in the content storage unit. The first indexing information is stored in the first index DB, which associates the extracted keyword with information about the content file, in a first index DB, and integrates and manages the first indexing information of peer terminals. Receives a predetermined search word from the index management unit and the replicating unit for providing a search, and extracts the content corresponding to the search term by searching the first index DB, and read the extracted content content from the content storage unit It may be characterized by including a web server unit for transmitting to the P2P server.

The web server unit of the hub terminal may transmit the read content to the replicating unit without transmitting the read content to the P2P server.

In addition, the hub terminal receives a predetermined search word from a user, receives the search word from the input / output unit and the input / output unit for outputting the search result information corresponding to the search word received through the transceiver and providing the user, and the search term. Transmits the search word to the other hub terminal corresponding to the search word when the information is transmitted to the P2P server through the transceiver to receive information about another hub terminal that manages contents corresponding to the search word from the P2P server. The apparatus may further include a search processing unit which receives the search result information, which is the content information searched by the other hub terminal, through the P2P server after requesting to search the content and provides the search result information to the input / output unit.

In addition, the hub terminal requests to register itself with the P2P server through the transceiver, and receives and stores the domain name assigned by the P2P server from the P2P server through the transceiver, and periodically stores its own dynamic IP. It may be characterized in that it further comprises a DDNS processing unit performing a function of checking and transmitting to the P2P server.

The P2P server according to the present invention for solving the above problems is a transmission and reception unit for transmitting or receiving necessary information through a communication network including the Internet, indexing information including the keyword of the content generated in the peer terminal to store the predetermined content Receives the secondary indexing information from a hub terminal storing secondary indexing information indexed secondly in association with the peer terminal, and tertiary indexing information indexed thirdly by linking the secondary indexing information with a fraudulent hub terminal. When the search term is received from the search request peer terminal, which is a peer terminal that receives a predetermined search term and a predetermined search term, and generates the index in the index DB, it corresponds to the indexing information of the content providing peer terminal that stores the content corresponding to the search term. The third terminal indexes the hub terminal that stores the secondary indexing information And a search processing unit that searches for and reads a raw DB and performs a function of providing information regarding the hub terminal to the search request peer terminal.

In addition, when the P2P server receives the search service subscription request information from a predetermined peer terminal through the transceiver, the P2P server assigns a domain name corresponding to the peer terminal to transmit to the peer terminal, and periodically sends the peer terminal from the peer terminal. And receiving a peer terminal information including an IP address and a port number of the DNS hosting server.

The P2P server may further include a member manager that receives and stores user information including an ID of a user who uses the peer terminal.

The network according to the present invention for solving the above problems is a predetermined content file corresponding to any one of a transmission and reception unit for transmitting or receiving necessary information through a communication network including the Internet and a file for storing text, voice or image information. Extracts a keyword from a content storage unit for receiving and storing the content file stored in the content storage unit and stores the indexing information associated with the extracted keyword and the information about the content file in an index DB, Receive a predetermined search word from the hub terminal through the index management unit and the transmission and reception unit for transmitting the indexing information to the hub terminal that integrates and manages the indexing information, and searches the index DB for the content corresponding to the search word Extraction by the extraction At least one peer terminal including a web server unit for reading content contents from the contents storage unit and transmitting the content contents to the hub terminal, a transceiver unit for transmitting or receiving necessary information through a communication network including the Internet, and predetermined content; A second index manager which receives indexing information indexed by the peer terminal from the predetermined peer terminal, the information of the contents through the transceiver, and stores the indexing information in association with the peer terminal in a second index DB; Receiving a predetermined search word through the transceiver unit, searching for the second index DB, reading information about a peer terminal storing content corresponding to the search word, and transmitting the search word to the read peer terminal. At least one hub stage comprising a portion And secondly indexing indexing information including a keyword of the content generated by a transceiver for transmitting or receiving necessary information through a communication network including the Internet and a keyword of the content generated in a peer terminal storing predetermined content with the peer terminal. An index management unit configured to receive the second indexing information from a hub terminal storing the secondary indexing information, generate the third indexing information indexed in the third manner by linking the second indexing information with a fraudulent hub terminal, and storing the third indexing information in an index DB; When the search term is received from the search request peer terminal which is a peer terminal that receives the search term of the hub terminal, the hub terminal stores the second indexing information corresponding to the indexing information of the content providing peer terminal that stores the content corresponding to the search term. The third indexing DB is searched and read, and related to the hub terminal. Information and a characterized in that it comprises a P2P server including a search processing unit to perform the function of providing the search request, the peer terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the basic concepts and drawings of the present invention.

The present invention utilizes Un-Used Resources (unused data resources or files) which are not used in the end user's terminal among the vast data distributed on the network with an open network structure such as the Internet. By using the P2P (Peer To Peer) technology proposed in the present invention, the information is made into semantic information, and the information is improved to minimize the wasted physical resources.

The method of P2P web service according to the present invention refers to a device having a user who owns a terminal (a terminal defined in the present invention) having a central computing unit (CPU) and a memory connected controlably by this CPU. Not only does it include information terminals such as computers, laptops, PDAs, cell phones, workstations, servers, mainframes, but also network interface boards such as the TINI Board provided by Dallas Semiconductor. In the same frame, an application program composed of modules that perform functions such as Internet browsing, web hosting, domain forwarding, P2P search, web page creation, and search engine registration, is proposed by the present invention. Web application and all kinds of files you want to share It is about how to register / share / search / save easily and quickly.

The search defined in the present invention includes a search on the similarity of the contents in the document by subject, title, word, and the like, and the application thereof is applied to all types of files including the web. In addition, registration means that each individual's data is registered on the web using P2P sharing.

Looking at the technical differences between existing web services and P2P services, the difference between web services and peer-to-peer services in terms of core networks is routing. In other words, an application server that provides Web services is basically a well-known host. However, hosts for JXTA or peer-to-peer services may be personal terminals that are not well known, or hosts that are well known, such as Web services. Web services work freely regardless of firewall or NAT (Network Address Translation). It is located outside the firewall and, of course, has a static IP. In comparison, however, the existing P2P service is in a completely different situation from the Web service. Peer-to-peer services cannot traverse firewalls and NATs and require extra messaging processing to traverse them. Therefore, P2P service, unlike web service, must include the state measurement in network and structure to solve it. For example, in JXTA, when a firewall is encountered, the technology that switches over to the HTTP protocol is over the firewall. In conclusion, network technology to solve this problem is regarded as a big difference between P2P service and Web service.

The difference between the two systems in terms of security is usually not very large. Encryption, hashing, authentication, and so on are required for both systems. The evolution of security libraries begins with the extension of existing protocols that are common to most new systems. For example, in the JXTA of P2P services, the group's peers must authenticate other peers. This is quite different from web services. A user in a web service does not act as a principal.

And in peer-to-peer services, peers can be dynamic as service providers and consumers, so all of these must be considered in security. Therefore, in terms of security, P2P service has the disadvantage of having all the various functions. But if you think about it in reverse, that could be a big advantage because every peer can dynamically determine the identity of a service.

The differences between the two systems in search are as follows. In a connected system, one computer advertises itself and finds another. The retrieval method previously proposed in web services is still through a centralized repository, such as a UDDI operator. In other words, you have a single index model and search through that service. The structure thereof is shown in FIG. 3. With UDDI, for example, companies must run a local version of UDDI's server to advertise and search their own services. These can be used for internal services or ADS (advertising & retrieval services). It displays its own collection of services and provides them externally through the services on the Web site. 3 is a reference diagram illustrating a search method in a conventional peer to peer model structure.

In contrast, peer-to-peer systems tend not to rely on centralized systems. Instead of centralizing the information, the peer retrieves the information in a variety of ways. It spreads information to all external peers through multicasting or brotcasting and uses it to recognize external services. This means that peers providing each peer-to-peer service must have an index. Or, it can use the information that other peers already know or have already retrieved and cached by themselves to recognize external services and use them.

And another way is to use search using a hub. This is basically not much different from centralized web services. It is also possible to use a hub as a way to gather peers with the same interests from the community's point of view. But which one is efficient depends on how it is used.

To date, the concept does not appear to be more efficient for centralized search and advertising methods. Conceptually, however, Web services will be able to take full advantage of the dynamic, distributed service discovery methods provided by peer services. Peer-to-peer services, on the other hand, are efficient in some ways, using a centralized method of Web services. This means that web services have an advantage over peer-to-peer services in managing service provider information or service registrant information.

The following is a comparison of reliability between two systems. In terms of reliability, both peer-to-peer services and web services cannot be defined as reliability simply by being related to standards. It can usually begin with an understanding of what phase difference there is on the network.

Web services typically use a centralized mechanism that will mostly use high availability systems. Therefore, it can be relatively reliable in places such as cluster application server related to load balancing. But for a peer-to-peer system, these services will be distributed equally among people.

The difference between the service interface and the message protocol between the two systems is perhaps the most different point of comparison.

There is a lot of talk about Web services in the standard way of describing services through WSDL. In other words, it is very difficult to define the standard. And basically, WSDL provides a way to describe an interface using XML. Web services have a standard way of defining interfaces. Web services then use SOAP as the standard way for service users to send messages to service providers. However, it means that they have a real protocol and are evolving, whether it is adopted as a practically accurate standard or if another good standard is reborn.

Peer services do not materialize the actual evolution of these service interfaces and message protocols. But SUNMICRO SYSTEM's JXTA tries to solve this problem with a more abstract approach. Early access from JXTA attempted a similar approach to Web services. However, JXTA goes back to the origins and allows SOAP and WSDL to interact with other services, such as Web services, rather than adopting the same protocol as the overall protocol framework. In other words, it is taking the core platform of peers to enable communication with Web services. That's because the JXTA project aimed to support communication with various services.

The trend of integrating conventional web services and P2P services will be discussed. Although there are many application programs in many P2P environments, standardization and integration plans for them are not specified. However, in the case of Web services, SOAP (protocol for writing XML), WSDL, UDDI, etc. are evolving. In other words, it rapidly changes to a network-based service extension structure. However, even if a web service extends an existing web environment to a distributed service environment, it does not include all the meanings of free expansion to every individual EDGE (PC) service.

Here, individual EDGE service means a service that each EDGE decides its own ROLE, not a service dependent service provider. This means that this is currently possible for personal Internet broadcasters, but not for P2P personal shopping shovels, personal homepages and other P2P web services that will require payment. 4 is a reference diagram showing a stack structure for each part when the web and P2P service are integrated, and FIG. 5 is a conceptual view of the service when the web and P2P service are integrated.

The structural complexity of general peer-to-peer services originates from the problem that, unlike Web services, it is impossible to determine who is the service provider, who is the consumer, or the registrant. A general P2P service has all three of these elements. Thus, peer services, unlike Web services, have technical problems with what each peer does and how it can be dynamically organized according to its capabilities.

Looking at the background of the present invention is as follows. Looking at the development of the Internet to date, the early WEB-based network has created a new communication standard. In other words, a web page was created using the HTML standard represented by a tag, placed on a web server, and the user only had to use it with one browser. With the development of the Internet, the demands of users have increased accordingly. The direct participation of users has increased by that much. The importance of the Internet 'interactive' has begun to emerge. This means that service users want to be service providers. The problem with the existing web is that the process of registering a web document on the Internet by the service provider is complicated, and it takes a long time through the search engine, and the process of obtaining the correct information by the service users through the search engine or other methods is complicated. It is. During the process described above, services using P2P (Peer to Peer) technology have emerged. This service showed rapid search and scalability to various kinds of services, but the lack of standardization caused flooding of current applications, which caused users to download many applications in order to obtain more accurate information. Had to accept. In the present invention, the Edge User can convert the service user from the provider to the provider, and unlike the existing P2P, it has compatibility on the web so that P2P can be shared through the web without standardization. The background is to make content distributed and shared.

The final object of the present invention is the convenience of the users. It improves the problem of updating the information of existing web services, that is, users can easily and quickly create their own pages in real time and not register them in search engines quickly. It has a basic purpose. In addition, P2P services have no standardized definition, incompatibility between applications, compatibility with web data, and security related firewalls and NAT (Network Address Translation). , Virtual private networks, etc., to make it easier for users to use the service with any network environment or EDGE computing device.

FIG. 6 is a reference diagram illustrating an overall service mechanism according to the present invention, FIG. 7 is a reference diagram illustrating a DNS service applied to the present invention, and FIG. 8 is stored in itself in a peer according to the present invention. This is a reference diagram illustrating the process of registering the content in the index.

Users can create and register web documents through templates that will be provided by the service, or create and save various contents and contents based on general standard web documents, and upload all kinds of files on them, and then place the source of actual files Hyperlink Publish your web file on the Internet with your own Domain Name (DN).

The document registered through the above process registers it in the index which will be located in the user's own terminal. The process is as follows.

Start indexing by specifying documents such as TXT, HTM, DOC, XLS, PPT, and Binary files in the directory. First, classify documents through filters. At this time, filtering works to filter out noise words. The noise word is a word that does not affect the search and is also called a non-index word. Examples include prepositions and investigations. The extracted word is saved as a file named, for example, Noise.dat (it can be added and deleted through a simple TXT editor). Word-breaking DLLs create their own Word Lists and store them in memory. This is very fast while only a small number of documents can be stored. Write the filtered data to the Word list. After the above process, the created data is stored in the catalog. 9 is a reference diagram illustrating an entire process of indexing content stored in the peer according to the present invention.

10 is a reference diagram illustrating a process of registering a document / file on the web and sharing among multiple users according to the present invention. The user has to enter each subject to be provided on the Internet service according to the information he is looking for. Go to the topic you want, enter the word you want to find in the search field, and press the Search button to see the results.

According to the present invention, the first indexed values in the peer terminal are first registered in the master index to the hub to which the category selected when the user registers his web page. Index terms are categorized by author name, URL, and publication date. The index and morpheme of word units are analyzed and indexed automatically. And to reduce the search time or reduce the load on the server, you can index the cookies into sub-directories in the user's specific directory (wwwroot directory) using Cookie files in the Peer's Temporary Internet folder grouped in the same group. The information file is reindexed by sending its attributes (time of final conversion, where the original source is located, author), etc. to the Index (HUB) of the hub terminal.

11 shows a configuration of an entire network to which the present invention is applied. Reference numeral 101 is a user's computer. The user computer 1101 performs a role of a peer terminal or a hub terminal as needed.

In this specification, a peer terminal refers to any type of computer that performs a function of storing a content file including text, voice, or video information.

The hub terminal performs a function of storing content information (type of content, keyword corresponding to the content, last modified date, file name, size, etc.) stored in the peer terminal in association with the peer terminal and storing the content information. Manages content possession status information of the peer terminal to which it belongs.

Reference numeral 102 denotes a P2P server, which provides a DDNS (Dynamic Domain Name Service) by registering a user computer, and performs a function of designating a hub terminal among the registered user computers according to the category of the classified contents. do.

Other functions of the peer terminal, the hub terminal, and the P2P server are described in detail below.

12 is a reference diagram conceptually illustrating a structure of a network according to the present invention.

Each peer terminal 1204, 1205, 1206, 1207 .. will belong to any one of the constant hub terminals 202, 203. The criterion to which a peer terminal belongs to a hub terminal may be a method of managing only the contents belonging to a specific kind of category to each hub terminal, and assigning (or selecting or forcing) a user to each peer terminal by the category. Or, it may be possible to randomly assign certain peer terminals to any one hub terminal.

All hub terminals 1202 and 1203 belong to the P2P server 1201.

Hereinafter, an example of allocating a specific category of content to each hub terminal, which is the former one, and assigning peer terminals storing content belonging to the category to the hub terminal will be described.

13 is a reference diagram for explaining a search process according to the present invention.

First, when the first peer terminal 1303 registers with the P2P server 1301, the P2P server 1301 assigns a domain name to the first peer terminal 1303 by a predetermined method and the first peer terminal 1303. Periodically transmits its floating IP address information and port number information to the above P2P server.

If the first peer terminal 1303 receives a predetermined search word from the user, the first peer terminal 1303 transmits the search word to the P2P server 1303 and the P2P server 1301 transmits the search term to itself. The category to which the above search word belongs is found by comparing the pre-stored contents with category information and keyword information corresponding to the category. Thereafter, the P2P server transmits information (domain name or IP address, port number, etc.) of the hub terminal 1302 managing content belonging to the category found above to the first peer terminal 1303, and the first peer. The terminal 1303 transmits a search word back to the hub terminal 1302 based on the information of the hub terminal 1302 received above. Here, the search term information may be directly transmitted from the P2P server 1301 to the hub terminal 1302.

The hub terminal 1302 receiving the search term searches for a peer terminal 1304 (second peer terminal) that stores contents corresponding to the above search terms among peer terminals belonging to the user through an index file stored in advance. In addition, the second peer terminal 1304 sends a search word to request content contents corresponding to the search word.

The second peer terminal 1304 transmits the content information (search result information) corresponding to the search word to the hub terminal 1302, and the hub terminal 1302 sends the search result information to the P2P server 1301. send.

The P2P server 1301 composes the search result information into a document having a format such as HTML and transmits the search result information to the first peer terminal 1303.

Here, when the first peer terminal 1303 receives a search word from a user, various types of search methods may be designated.

The search method includes a user's guide, a keyword search, a keyword search, and the like.

The keyword guide above is used when the user does not know the exact term related to the search or when the user wants to search by selecting a desired search term from the list of topics that are classified hierarchically. The field is provided and the search is made only within the scope. This method outputs the most similar words in a list form if the same word is not found when the search word is entered, allowing users to select and search among the most relevant words. The criteria for classifying vocabulary were made by referring to LOC (Library of Congress) provided in English. For Korean, the classification method by morpheme and vocabulary usage provided by Korea University Institute of Culture and Culture is available.

The above similarity search supports the search in the order of records most closely related to the input search word, and the degree of relevance is indicated by the search method in% (percent). This relevance can be searched by the words in the title or abstract, and the document titles, authors, and themes are integrated to help you find the documents or files you want, sorted by relevance. It also supports the limited search function to reduce the search results you enter, you can see the limited search results.

The keyword search searches the keywords extracted from the text and the title. If you know the content, terminology, or key words that may be the subject of the field you are looking for, you can easily access the information through keyword search. If you don't know the exact term, you can use the topic guide.

14 is a flowchart of a preferred embodiment of a process in which a peer terminal first registers with a user in a service server according to the present invention.

First, the user computer accesses the P2P server (1401), and then receives (1402) member request information from the user and member information including the user's name, phone number, address, ID, password, and the like, and transmits it to the P2P server ( 1403).

The P2P server stores the above member information in the member DB, searches a peer DB for each category in which information on peers belonging to the category, which is provided in advance, reads category information (1405), and transmits the category information to the user computer (1406). do.

Table 1 below shows a preferred embodiment of the structure of the member DB, Table 2 shows a preferred embodiment of the peer DB by category.

Here, the peer DB for each category includes a user ID, domain name information assigned to a user computer used by the user, category information to which the user computer belongs, and information on whether the role of the user computer is a simple peer terminal or a hub terminal. Is stored.

After that, the user's computer displays the received category information and provides it to the user.The user's category is selected from the user to which the user's computer belongs (1407), and the above category information, dynamic IP address, and port number information are transmitted to the P2P server. (1408).

The P2P server receives the category information selected above, assigns a domain name to the user computer, and refers to the information stored in the peer DB for each category, which is one of the roles of the user computer, that is, a peer terminal or a hub terminal. The user information, domain name information, category information, role information, and the like are registered in the peer DB for each category (1409).

After that, the P2P server reads the noise and keyword DB (1410), the necessary driving program according to the role (hub or peer terminal) to the user computer, the program for DDNS (period of IP address and port of the user computer periodically) A program for transmitting information to the P2P server, noise and keyword information, and category information registered by the user computer are transmitted to the user computer (1411).

The user computer installs an IP transmission program and a driving program necessary for a role, and stores its domain name and category information in a basic information DB (1412). Table 3 shows a preferred embodiment of the above basic information DB.

The user computer stores the noise information and the keyword information (1413).

The structure of the noise and keyword DB is shown in Table 4 according to the preferred embodiment.

Meanwhile, the P2P server stores the domain name, the dynamic IP address, and the port number information of the user computer in the DDNS DB (1414). The structure of the DDNS DB is shown in Table 5 the preferred embodiment.

Thereafter, the user computer periodically transmits its IP address and port number and its domain name information to the P2P server (1415), and the P2P server stores the contents in the DDNS DB (141).

15 is a flowchart of a preferred embodiment of a process of indexing at a peer terminal according to the present invention.

First, the user content received from the user and stored, the COOKIE files obtained when the user surfs the Internet through the peer terminal, and various files received and stored through FTP are read (1501). In this case, only the content file selected by the user can be read (i.e., only the content file selected by the user can be indexed) if necessary (when the use of some content is restricted due to copyright, etc.).

Then, the files of the above files are extracted 1502 by filtering each of the files read above. At this time, the noise information previously downloaded and stored from the P2P server may be used. That is, the keywords of the above files may be extracted by extracting words included in the above files and removing a search that performs only a grammatical function corresponding to noise information among the words.

Thereafter, the categories of the above files may be classified by using the extracted keyword and previously stored category keyword information. That is, by determining the similarity between the extracted keywords and the keywords for each category (keyword set), the file may be allocated to the category having the highest similarity, or the file may be assigned to a plurality of categories if the category is similar within a certain range. There will be. The similarity between the above keywords is determined by using a conventional method, such as distance coefficient, correlation coefficient, correlation coefficient, probabilistic similarity coefficient, cosine coefficient, dice coefficient, jacquard coefficient, and the like.

Thereafter, the peer terminal indexes the file by the category allocated above (1504). In this case, the peer terminal may index all the content files stored in the peer terminal (the above indexing information may be classified into categories and transmitted to a hub terminal managing content information of the corresponding category), or Only the content corresponding to the category to which it belongs can be indexed (in this case, the indexing information is transmitted only to the hub terminal to which it belongs). Table 6 shows the structure of a preferred embodiment of an index file that stores indexing information at a peer terminal.

In this case, the category information of the contents may include information such as subtopics and subtopics, and may further include more detailed information as necessary.

Thereafter, the peer terminal 1505 transmits the indexing information stored in the index file to the hub terminal belonging to its category.

16 is a flow chart of a preferred embodiment of a process of indexing at a hub in accordance with the present invention. Here, the hub terminal is a user computer used by a user like the peer terminal, and thus the hub terminal may store some content. That is, the hub terminal may also index the content information stored by itself through the process shown in FIG. 15, but additionally perform the indexing process shown in FIG. 16.

First, the hub terminal receives 1601 indexing information from a predetermined peer terminal (any one of peer terminals belonging to a category to which it belongs).

After that, it is determined whether the content belongs to a preset category (ie, a category to which it belongs) by using keyword information among the received indexing information (1602), and if true, the received index is indexed for each peer terminal to index the hub. Save to DB (1603). A preferred embodiment of the above hub index DB is shown in Table 7.

Thereafter, the hub terminal 1604 transmits the indexing information stored in the hub index DB to the P2P server.

17 is a flowchart of a preferred embodiment of a process of indexing in a P2P server according to the present invention.

The P2P server receives 1701 the indexed information from all hub terminals. The indexed information received is indexed again for each hub and stored in the DB 1702. A preferred embodiment of the index DB of the P2P server is shown in Table 7.

18 is a flowchart of a preferred embodiment of the searching process according to the present invention.

First, a search request peer terminal, which is a peer terminal that searches for predetermined content through the Internet, receives a predetermined search word 1801 from a user, and transmits 1802 to a P2P server.

The P2P server searches for a category having a keyword corresponding to the above search word, searches for a hub terminal managing the category (1803), reads the information, and transmits information (domain name, etc.) of the hub terminal to the search request peer terminal ( 1804).

The search request peer terminal transmits the search term information to the hub terminal based on the information of the hub terminal (1805).

The hub terminal searches for a content providing peer terminal, which is a peer terminal that stores content corresponding to the search term, based on the received search word (1806), reads it, and transmits the search term information to the content providing peer terminal (1807). do.

The content providing peer terminal searches for the content corresponding to the search word among the contents stored by the peer based on the received search word, reads the content content (1808), and transmits the search result to the hub terminal (1809). .

The hub terminal transmits the above search result information back to the P2P server (1810).

The P2P server converts the received search result information into a document such as HTML (1811), and transmits the converted document to the search request peer terminal (1812).

The search request peer terminal outputs the received document and provides it to the user (1813).

Here, in step 1804, the search word may be directly transmitted to the hub terminal in which the P2P server is searched. In this case, step 1805 is not performed.

In addition, in step 1809, the content providing peer terminal may directly transmit the search result information to the P2P server. In this case, step 1810 is not performed.

Hereinafter, a block diagram of a peer terminal, a hub terminal, and a P2P server according to the present invention will be described with reference to the drawings. However, the block diagrams described herein are devices corresponding to various methods according to the present invention described above, and the description thereof will be simplified below.

19 is a block diagram of a preferred embodiment of a peer computer (terminal) according to the present invention.

The peer terminal according to the present invention may include a transceiver 1901, a DDNS processor 1902, an index manager 1901, a search processor 1904, a web server unit 1905, an input / output unit 1906, and an XML search unit. have. In addition, the peer terminal is provided with a content storage unit and the index DB.

The transceiver 1901 performs a function of transmitting or receiving necessary information through a communication network including the Internet.

The content storage unit receives and stores a predetermined content file corresponding to any one of files that store text, voice, or image information.

The index manager 1903 extracts a keyword from a content file stored in the content storage unit, and stores indexing information associated with the extracted keyword and the information about the content file in an index DB, and the indexing information of peer terminals. It performs the function of transmitting the indexing information to the hub terminal to manage the integrated through the transceiver.

The web server unit 1905 receives a predetermined search word from the hub terminal through the transceiver unit, searches for and extracts the index DB from the content corresponding to the search word, and reads the extracted content content from the content storage unit. To transmit to the hub terminal.

The input / output unit 1906 receives a predetermined search word from the user, and outputs search result information corresponding to the search word received through the transceiver to provide the user with the search word.

The search processor 1904 receives the search word from the input / output unit, transmits the search word to a P2P server providing a P2P search service through the transceiver, and then manages contents corresponding to the search word from the P2P server. After receiving the information about the request, and transmits the search word to the hub terminal to request to search the content corresponding to the search word received the search result information that is the content information searched from the hub terminal through the P2P server Functions provided to the input / output unit.

The DNS processing unit requests to register itself with the P2P server through the transceiver, receives and stores the domain name assigned by the P2P server from the P2P server through the transceiver, and periodically checks its own dynamic IP. It performs the function of transmitting to the P2P server.

The XML search unit 1907 performs a function of searching an XML document in a P2P manner, which may use JXTA, for example, using a conventional technology.

20 is a block diagram of a preferred embodiment of a hub computer according to the present invention. The hub terminal according to the present invention includes all of the configuration of the peer terminal of FIG. 19, and further includes a second index management unit 2007, a replicating unit 2008, and a second index DB. That is, reference numerals 2001 correspond to 1901, 2002 to 1902, 2003 to 1903, 2004 to 1904, 2005 to 1906, 2006 to 1905, and 2007 to 1907.

The second index manager 2007 receives indexing information obtained by indexing the information of the contents in the peer terminal from the predetermined peer terminal that stores the predetermined content through the transceiver, and links the index with the peer terminal. Store the data in the second index DB,

When the replicating unit 2008 receives a predetermined search word through the transmitting and receiving unit, the replicating unit 2008 searches for the second index DB, reads information on a peer terminal that stores content corresponding to the search word, and sends the searched information to the read peer terminal. It performs the function of transmitting the search word. The replicating unit 2008 transmits the content content to a P2P server that manages the content content through information stored in the second index DB when the content content corresponding to the search word is received from the peer terminal. Can be further performed.

21 is a block diagram of a preferred embodiment of a P2P server according to the present invention. The P2P server according to the present invention may include a transceiver 2101, a DNS hosting server 2102, an index manager 2103, a search processor 2104, and a member manager 2105.

The transceiver 2101 performs a function of transmitting or receiving necessary information through a communication network including the Internet.

When the DNS hosting server 2102 receives the search service subscription request information from a predetermined peer terminal through the transceiver, the DNS hosting server 2102 assigns a domain name corresponding to the peer terminal and transmits it to the peer terminal, and periodically from the peer terminal. Receives peer terminal information including the IP address and the port number of the peer terminal and stores in association with the domain name.

The index manager 2103 may be configured to store the secondary indexing information, which is secondary indexed by linking the indexing information including the keyword of the content generated at the peer terminal storing predetermined content with the peer terminal, from the hub terminal. The indexing information is provided, and the secondary indexing information and the fraud hub terminal are linked to generate tertiary indexing information that is thirdly indexed and stored in the index DB.

When the search processor 2104 receives the search word from a search request peer terminal that is a peer terminal that receives a predetermined search word, the second search indexing information corresponding to indexing information of the content providing peer terminal that stores the content corresponding to the search word Search for and read the tertiary indexing DB from the hub terminal, and store information about the hub terminal to the search request peer terminal.

The member manager 2105 receives and stores user information including the ID of the user who uses the peer terminal.

Various methods according to the present invention described above can be written in a computer executable program, and the above programs can be recorded in a computer readable recording medium.

According to the present invention, users can easily perform a web hosting service using their PCs, and users can create and host their own web sites much more easily than conventional methods. This enables interactive (users' service participation) Internet participation effect (see blogger service) to realize essential functions as next-generation Internet technology. There is a big difference in the economy.

According to the present invention, it was possible to improve the quality of Internet traffic by moving away from the centralized service operation, which is the biggest problem of various types of services of web portal / community related companies, and users themselves without having a separate web master and content manager. By providing a platform that can be operated by the real-time web content generation in comparison with the existing content in terms of the update rate is superior to the existing content has the effect that can provide users with live content. That is, users can easily publish (Publish) the content, such as documents created by the user through the Internet, and also has the effect that can easily and quickly search for the desired information through the Internet. It also has the effect of running your computer as a server with multiple functions.

From an enterprise perspective, the economic expectation is that all of these technologies are based on P2P technology, which allows operators to significantly reduce the economic loss of web hosting. This is because server expansion is not necessary due to the increase of users. In addition, through the present invention, the service provider may perform web hosting such as a personal shopping mall or an e-commerce at a low cost, and may provide various other services while maintaining security stability.

In addition, according to the present invention, there is an effect of combining a web service-based technology and P2P-based technologies that have been independently developed. In the conventional P2P technology, there are some limitations related to security. Among them, most of the P2P services are not available when the user's terminal is located in the firewall, and it is not possible to use the network address translation (NAT). It also has the effect of solving the problem.

In addition, according to the present invention there is an effect that can be solved through the sharing of information on the web, the problem that was difficult to compatible with other programs, which is a problem of P2P technology, the information requester can search and view the information shared by the provider on the WWW Although it is possible to download the file, it is necessary to obtain the consent of the information provider so that it can be provided through the service to be provided by the present invention.

In addition, according to the present invention, using P2P technology, the speed of data registration and retrieval, which was difficult to implement rapidly in existing web services, can be greatly improved.

Currently, many Internet users pile up Un-Used Resources on their own terminals without knowing it. According to the present invention, each peer terminal itself is a cashing server by utilizing the un-used resources of each peer. By taking advantage of the role, it is possible to break away from the existing centralized web-hosting method, which enables the user to maintain speed even if the number of hits of the web page hosted by the user is increased even with a limited capacity terminal.

Claims (33)

(a) receiving and storing a predetermined content file corresponding to any one of files storing text, voice, or image information from a user; (b) extracting keyword information from the stored content file; (c) generating indexing information including a keyword of the content file and storing the indexing information in an index file. The method of claim 1, wherein step (a) And storing a content file including a cookie file obtained from a computer on another internet by a user using the internet through the peer terminal. The method of claim 1, wherein step (a) A method for indexing content information in a peer terminal, characterized in that for receiving and storing predetermined content from another computer via FTP over the Internet. The method of claim 1, Step (a) is Storing noise information in a database, the noise information being a list of grammatical functional words comprising a survey that may be included in the file content or name of any file storing text, voice or image information or descriptive information about the file. Including, Step (b) is (b1) extracting meaningful words from the stored content file; And and (b2) extracting keyword information consisting of words from which the noise information stored in the database is removed from the extracted words. The method of claim 1, and (d) transmitting the indexed information to a hub terminal which collects and manages indexing information of predetermined peer terminals. The method of claim 1, The step (a) further includes the step of having a database for storing the keyword information for each category, which is a keyword corresponding to a pre-categorized category, Step (c) is (c1) determining a category of the content file by obtaining a similar degree between the extracted keyword information and keyword information for each category of the database; And (c2) if the determined category matches preset category information, storing indexing information including a keyword of the content file in an index file, and indexing the content information in a peer terminal. . (a) receiving and storing a predetermined content file corresponding to any one of files storing text, voice, or image information from a user; (b) extracting keyword information from the stored content file; (c) generating indexing information including keywords of the content file and storing the indexing information in a first index file; (d) receiving the indexing information performed by the other peer terminal from another peer terminal that has indexed the content information owned by the user through steps (a) to (c), and the indexing provided from the other peer terminal And storing the information and the indexing information stored in the first index file in a second index file. The method of claim 7, wherein step (a) And storing a content file including a cookie file obtained from a computer on another internet by a user using the internet through the peer terminal. The method of claim 7, wherein Step (a) is Storing noise information in a database, the noise information being a list of grammatical functional words comprising a survey that may be included in the file content or name of any file storing text, voice or image information or descriptive information about the file. Including, Step (b) is (b1) extracting meaningful words from the stored content file; And and (b2) extracting keyword information consisting of words from which the noise information stored in the database is removed among the extracted words. The method of claim 7, wherein The step (a) further includes the step of having a database for storing the keyword information for each category, which is a keyword corresponding to a pre-categorized category, Step (c) is (c1) determining a category of the content file by obtaining a similar degree between the extracted keyword information and keyword information for each category of the database; And (c2) if the determined category matches preset category information, indexing the content information in the hub terminal, storing indexing information including a keyword of the content file in a first index file. How to. The method of claim 7, wherein and (e) transmitting the indexing information stored in the second index file to a P2P server which collects and manages indexing information of predetermined hub terminals. (a) receiving and storing a predetermined content file corresponding to any one of a file storing text, voice, or image information from a user in a peer terminal storing predetermined content; (b) extracting keyword information from the stored content file at the peer terminal, generating indexing information including the keyword, and storing the index information in the index file; (c) In the hub terminal that receives the indexing information from a predetermined peer terminal and indexes it for each peer terminal, the indexing information for indexing the content information owned by the user through the steps (a) and (b) is added to the first index file. Storing; (d) receiving, at the hub terminal, indexing information of the peer terminal from the peer terminal, storing the provided indexing information and indexing information stored in the first index file in a second index file and indexing the index information; And (e) receiving the indexed information from a predetermined hub terminal and re-indexing it, receiving indexing information stored in the second index file from the hub terminal of step (d) and storing the index information in its own index file And indexing the content information on the Internet. (a) A predetermined hub terminal storing first index information regarding content stored in a content providing peer terminal that stores predetermined Internet content, classified by category including the content, is stored by the predetermined hub terminal. Providing a database storing third index information indexing second index information for each hub terminal; (b) receiving predetermined search word information about a content to be searched through the Internet from a user, and receiving the search word from a peer terminal outputting a search result corresponding to the search word and providing the search result to the user; (c) searching and reading a database of a hub terminal storing information on a peer terminal having content corresponding to the search word, and transmitting the read hub terminal information to the peer terminal; And (d) receiving the search result information, which is the content corresponding to the search word, from the hub terminal or a predetermined peer terminal storing the content corresponding to the search word, and writing the search result information into a document of a predetermined form; Transmitting to the peer terminal; providing a search service in a P2P server. The method of claim 13, wherein step (c) Search service in a P2P server, characterized in that the hub terminal that stores the information on the peer terminal having the content corresponding to the search term, the database is searched and read, and the search term is transmitted to the read hub terminal How to give it. The method of claim 13, wherein step (d) And receiving search result information, which is content corresponding to the search word, from the hub terminal, and writing the search result information into an HTML document and transmitting the search result information to the peer terminal. (a) providing a database storing second index information for classifying first index information regarding content stored in a content providing peer terminal storing predetermined Internet content for each category including the content; (b) a search request peer terminal that receives predetermined search term information regarding content to be searched through the Internet from a user, outputs a search result corresponding to the search word, and provides the search request to a peer terminal or a content corresponding to the search term; Receiving the search word from a P2P server that stores information about a hub terminal that manages a; And (c) searching for and reading the database from a content providing peer terminal storing content corresponding to the search word, and transmitting the search word to the read content providing peer terminal; How to provide a search service. The method of claim 16, (d) receiving the search result information which is the content corresponding to the search word from the read content providing peer terminal, converting the search result information into document information of a predetermined form, and providing the search request peer terminal to the P2P server; The method for providing a search service in a hub terminal, characterized by further comprising the step of transmitting a search result. (a) In a content providing peer terminal that stores a predetermined content file and receives a search request for the content from an outside, reads the content and provides the content. Extracting a keyword from the content file and having a first index DB for storing first indexing information indexed for each content; (b) a hub terminal receiving the first indexing information from the content providing peer terminal and managing the same; Providing a second index DB for storing second indexing information associated with the provided indexing information with the content providing peer terminal; (c) the P2P server receiving and managing the second indexing information from the hub terminal; Providing a third index DB for storing third indexing information associated with the provided second indexing information with the hub terminal; (d) A search request peer terminal that receives a search word used to search for a predetermined content from a user, receives content corresponding to the search word, outputs the same, and provides the search word to the P2P server. Transmitting; (e) the P2P server searches for and reads the second in-instance DB from a hub terminal that stores the first indexing information of the content providing peer terminal that stores the content corresponding to the search word, and reads the read hub terminal. Transmitting information relating to the search request peer terminal; (f) the search request peer terminal transmitting the search word to the received hub terminal; (g) the hub terminal receiving the search word, searching for the second index DB, reading a content providing server storing content corresponding to the search word, and providing the search word to the read content providing server; (h) The content providing peer terminal receiving the search word extracts the content corresponding to the search word based on the search word and the information stored in the first index DB, and reads the content from the content storage unit to search the search result. Generating information and transmitting the generated information to the hub terminal; (i) transmitting, by the hub terminal receiving the search result information, the search result information to the P2P server; (j) the P2P server converting the received search result information into an HTML document and transmitting it to the search request peer terminal; And (k) the search request peer terminal outputting the received HTML document and providing it to the user. The method of claim 18, In the step (h), the content providing peer terminal receiving the search word extracts the content corresponding to the search word based on the search word and the information stored in the first index DB, and reads the content from the content storage unit. Generating the search result information and transmitting the search result information to the P2P server, wherein step (i) is not performed. A transceiver for transmitting or receiving necessary information through a communication network including the Internet; A content storage unit for receiving and storing a predetermined content file corresponding to any one of files storing text, voice, or image information; A hub that extracts a keyword from a content file stored in the content storage unit, stores indexing information associated with the extracted keyword and the information about the content file in an index DB, and integrates and manages the indexing information of peer terminals. An index manager which transmits the indexing information to the terminal through the transceiver; And Receiving a predetermined search word from the hub terminal through the transceiver unit, searching for and extracting content corresponding to the search word by the index DB, reading the extracted content content from the content storage unit, and transmitting the searched content to the hub terminal. Peer terminal comprising a web server unit. The method of claim 20, An input / output unit which receives a predetermined search word from a user and outputs search result information corresponding to the search word received through the transmission / reception unit to provide to the user; And After receiving the search word from the input / output unit, transmitting the search word to a P2P server providing a P2P search service through the transceiver unit, and receiving information about a hub terminal managing contents corresponding to the search word from the P2P server. Requesting to search the content corresponding to the search word by transmitting the search word to the hub terminal, and receiving search result information, which is content information searched from the hub terminal, through the P2P server and providing the search result information to the input / output unit. Peer terminal further comprises a processing unit. The method of claim 20, Requests to register itself to the P2P server through the transceiver, and receives and stores the domain name assigned by the P2P server from the P2P server through the transceiver, and checks its own dynamic IP periodically to the P2P server Peer terminal further comprises a DDNS processing unit for performing a function for transmitting to. A transceiver for transmitting or receiving necessary information through a communication network including the Internet; Receiving indexing information obtained by indexing the information of the contents in the peer terminal from the predetermined peer terminal that stores the predetermined content through the transceiver, and in association with the peer terminal and the indexing information to store in the second index DB A second index manager; And When a predetermined search word is received through the transceiver, the second index DB is searched to read information about a peer terminal storing content corresponding to the search word, and then the replica is transmitted to the read peer terminal. Hub terminal, characterized in that it comprises a ting. The method of claim 23, wherein The replicating unit further performs a function of transmitting the content content to a P2P server that manages the content content through the information stored in the second index DB when the content content corresponding to the search word is received from the peer terminal. Hub terminal, characterized in that. The method of claim 23, wherein A content storage unit for receiving and storing a predetermined content file corresponding to any one of files storing text, voice, or image information; Extracting a keyword from a content file stored in the content storage unit to store the first indexing information associated with the extracted keyword and the information about the content file in a first index DB, the first indexing information of peer terminals An index manager configured to provide the first indexing information to the second index manager that integrates and manages the first indexing information; And A web that receives a predetermined search word from the replicating unit, searches for and extracts the content corresponding to the search word from the first index DB, reads the extracted content content from the content storage unit, and transmits the extracted content to the P2P server; Hub terminal comprising a server unit. The method of claim 25, And the web server unit transmits the read content to the replicating unit without transmitting the read content to the P2P server. The method of claim 23, wherein An input / output unit which receives a predetermined search word from a user and outputs search result information corresponding to the search word received through the transmission / reception unit to provide to the user; And The other hub receives the search word from the input / output unit, transmits the search word to the P2P server through the transceiver, and receives information about another hub terminal managing contents corresponding to the search word from the P2P server. The search processing unit which transmits the search word to the terminal to search for the content corresponding to the search word and receives the search result information which is the content information searched from the other hub terminal through the P2P server and provides the search result information to the input / output unit. Hub terminal, characterized in that it further comprises. The method of claim 23, wherein Requests to register itself to the P2P server through the transceiver, and receives and stores the domain name assigned by the P2P server from the P2P server through the transceiver, and checks its own dynamic IP periodically to the P2P server Hub terminal, characterized in that it further comprises a DDNS processing unit for transmitting a function. A transceiver for transmitting or receiving necessary information through a communication network including the Internet; Receiving the secondary indexing information from a hub terminal storing secondary indexing information, which is secondary indexed by linking indexing information including a keyword of the content generated in a peer terminal storing predetermined content with the peer terminal, An index manager configured to associate the secondary indexing information with a fraudulent hub terminal to generate tertiary indexing information that is thirdly indexed and store the indexing information in an index DB; And When the search term is received from a search request peer terminal that is a peer terminal that receives a predetermined search term, the hub terminal stores second indexing information corresponding to indexing information of the content providing peer terminal that stores the content corresponding to the search term. And a search processing unit configured to search for and read the tertiary indexing DB and to provide information regarding the hub terminal to the search request peer terminal. The method of claim 29, When receiving the search service subscription request information from a predetermined peer terminal through the transceiver, the domain name corresponding to the peer terminal is assigned and transmitted to the peer terminal, and the IP address and port of the peer terminal periodically from the peer terminal. And a DDNS hosting server unit configured to receive peer terminal information including a number and store the information in association with the domain name. The method of claim 29, And a member management unit for receiving and storing user information including an ID of a user who uses the peer terminal. A transceiver for transmitting or receiving necessary information through a communication network including the Internet; A content storage unit for receiving and storing a predetermined content file corresponding to any one of files storing text, voice, or image information; A hub that extracts a keyword from a content file stored in the content storage unit, stores indexing information associated with the extracted keyword and the information about the content file in an index DB, and integrates and manages the indexing information of peer terminals. An index manager which transmits the indexing information to the terminal through the transceiver; Receiving a predetermined search word from the hub terminal through the transceiver unit, searching for and extracting content corresponding to the search word by the index DB, reading the extracted content content from the content storage unit, and transmitting the searched content to the hub terminal. At least one peer terminal including a web server unit; Transmitting and receiving unit for transmitting or receiving necessary information through a communication network including the Internet; Receives the indexing information indexed to the information of the contents in the peer terminal from a predetermined peer terminal that stores a predetermined content through the transceiver, A second index manager which associates the peer terminal with the indexing information and stores the index information in a second index DB; When a predetermined search word is received through the transceiver, the second index DB is searched to read information about a peer terminal storing content corresponding to the search word, and then the replica is transmitted to the read peer terminal. At least one hub terminal including a putting unit; And A transceiver for transmitting or receiving necessary information through a communication network including the Internet; Receiving the secondary indexing information from a hub terminal storing secondary indexing information, which is secondary indexed by linking indexing information including a keyword of the content generated in a peer terminal storing predetermined content with the peer terminal, An index manager configured to associate the secondary indexing information with a fraudulent hub terminal to generate tertiary indexing information that is thirdly indexed and store the indexing information in an index DB; And a hub storing secondary indexing information corresponding to indexing information of a content providing peer terminal that stores content corresponding to the search term when the search term is received from a search request peer terminal that is a peer terminal that receives a predetermined search term. And a P2P server including a search processor configured to search for and read the tertiary indexing DB, and to provide information regarding the hub terminal to the search request peer terminal. A computer-readable recording medium having recorded thereon a program capable of executing the method of any one of claims 1 to 19.