Abstract: A data processing system includes a data processing unit which processes data acquired and a plurality of data retaining units which store databases used to process the data. Each of the plurality of data retaining units stores a primary database in common and stores the respective shares of a secondary database. The primary database stores a list of IDs for identifying data to be processed by any one of the plurality of data processing units. Each of the data processing units is notified of a range of IDs that the data processing unit handles, among the list of IDs stored in the primary database, and, when acquiring a packet containing an ID that lies within the range of IDs, the data processing unit processes the packet.

Abstract: The present invention provides a technique for improving the security of access to contents. A virus/phishing site list contains a list of URLs of phishing sites, which masquerade as valid websites and are provided with an attempt to acquire private information including card numbers, PIN numbers and passwords, from users illegally. When a communication control unit receives, via a network, a packet that contains communication data for requesting access to a content, a search circuit compares the URL of the content to be accessed included in the communication data, with URLs of phishing sites included in the virus/phishing site list. If the address of the content to be accessed matches a URL of a phishing site, a process execution circuit will prohibit the access to the content.

Abstract: The present invention provides a technique for enabling a high-speed communication control apparatus. A packet processing circuit of a communication control apparatus includes a user database, a virus list, a whitelist, a blacklist and a common category list. Upon acquisition of a request for access to a content, matching between information on a user who has sent the access request and the user database is performed by a search circuit, so as to authenticate the user. When the user is authenticated, the search circuit performs matching between the URL of the content to be accessed and the virus list, whitelist, blacklist and common category list. A process execution circuit controls the permission for the access based on the search result of the search circuit and determination conditions stored in a second database. The packet processing circuit is configured with a wired logic circuit.

Abstract: A data processing system includes a data processing unit which processes data acquired and a plurality of data retaining units which store databases used to process the data. Each of the plurality of data retaining units stores a primary database in common and stores the respective shares of a secondary database. The data processing system includes at least one more data retaining unit which can store the primary database and the respective shares of the secondary database.

Abstract: The present invention provides a technique for managing P2P communication appropriately. Each P2P node constituting a P2P network in a communication management system conducts P2P communication with another P2P node. A P2P node has a P2P connection to communicate with a P2P node. A node detector refers to communication data transmitted from or to a P2P node to detect identification information of a P2P node, and registers the information in a P2P node database. A communication control system possessed by an ISP refers to identification information stored in the P2P node database, so as to detect and perform filtering on P2P communication between P2P nodes.

Abstract: An object of the present invention is to provide an apparatus, a method, and a system for virus detection which can find even an unknown virus easily with no OS dependency. To achieve the foregoing object, the present invention provides a virus detection apparatus including an inspection computer to be connected to a mail server. The inspection computer includes file opening means for opening an attachment of e-mail transferred from said mail server, an I/O port for establishing interface connection with a PC, the PC being connected to the inspection computer to send and receive e-mail to/from the mail server through the inspection computer, virus inspecting means for detecting data of the attachment opened by said file opening means for access to said I/O port to inspect virus invasion, and warning means for outputting a warning signal from the virus inspecting means when access to the I/O port is detected.

Abstract: The present invention provides a technique for outputting an appropriate message in response to a request for access to a content or a service. A communication control apparatus receives a packet for requesting access to a content or a service and determines whether or not the access should be permitted. If the access is prohibited, the communication control apparatus will instruct a message output server to output a message such as an error message. A message retaining unit retains a message to be output to an access request source, with respect to each user of access request source, or each URL or each category of contents to be accessed. A registration acceptance unit accepts message registration and instructs a charging unit to charge a registration fee. The charging unit then performs processing for deducting the registration fee from the registrant's account.

Abstract: The present invention provides a technique for improving the security of access to contents. A virus/phishing site list contains a list of URLs of phishing sites, which masquerade as valid websites and are provided with an attempt to acquire private information including card numbers, PIN numbers and passwords, from users illegally. When a communication control unit receives, via a network, a packet that contains communication data for requesting access to a content, a search circuit compares the URL of the content to be accessed included in the communication data, with URLs of phishing sites included in the virus/phishing site list, regardless of the need for access control of the communication data. If the address of the content to be accessed matches a URL of a phishing site, a process execution circuit will prohibit the access to the content.

Abstract: A method of duplicating protocol for making identical the order of reception and contents of packets on the two computers of a duplicated computer system with respect to packets of specific types of communication. On the first computer, each packet taken in is checked to determine whether the packet is a packet of the specific types of communication before protocol processing. If the packet is a packet of the specific types of communication, the packet is passed to the protocol processing process and added to a virtual queue created in its shared memory. On the second computer, each packet taken in is checked to determine whether the packet is a packet of the specific types of communication before protocol processing. If the packet is a packet of the specific types of communication, the packet is discarded, and the one at the head of the virtual queue in its shared memory is passed to the protocol processing process.

Abstract: A method of duplicating servers and a duplicated server system that make seamless transition of service in case of server failures possible. The duplicated server system comprises first and second servers that are connected to a network and have the same network address, communication means for making high-speed communication between both servers possible, and switchover controller that designates the first server as the primary server put in operation for other computers and the second server as the secondary server in normal condition. When the first server receives a service request addressed to the system, it passes the service request to the application for processing. The first server sends the recovery data output by the application to the second server by means of the communication means.

Abstract: A method of duplicating protocol for making identical the order of reception and contents of packets on the two computers of a duplicated computer system with respect to packets of specific types of communication. On the first computer, each packet taken in is checked to determine whether the packet is a packet of the specific types of communication before protocol processing. If the packet is a packet of the specific types of communication, the packet is passed to the protocol processing process and added to a virtual queue created in its shared memory. On the second computer, if the packet is a packet of the specific types of communication, the packet is discarded, and the one at the head of the virtual queue in its shared memory is passed to the protocol processing process.

Abstract: A communication system includes a plurality of boundary scan elements including input and output terminals and a plurality of boundary cells individually assigned to the respective input terminals and output terminals, a plurality of data output units connected parallel to the boundary scan elements, and a communication controller connected to the boundary scan elements in series. The communication controller transmits and receives through the boundary scan elements control data for individually controlling the data output units. A signal data communication line is connected with the data output units in parallel, and a signal processing unit is connected with the signal data communication line and the communication controller for transmitting output data from the data output units under a control of the communication controller.

Abstract: An object of the present invention is to provide an apparatus, a method, and a system for virus detection which can find even an unknown virus easily with no OS dependency. To achieve the foregoing object, the present invention provides a virus detection apparatus including an inspection computer to be connected to a mail server. The inspection computer includes file opening means for opening an attachment of e-mail transferred from said mail server, an I/O port for establishing interface connection with a PC, the PC being connected to the inspection computer to send and receive e-mail to/from the mail server through the inspection computer, virus inspecting means for detecting data of the attachment opened by said file opening means for access to said I/O port to inspect virus invasion, and warning means for outputting a warning signal from the virus inspecting means when access to the I/O port is detected.

Abstract: A communication element having a plurality of input-side boundary cells and output-side boundary cells, and a TAP circuit for controlling the input and output of data to/from said input-side and output-side boundary cells, in which the input-side boundary cells are connected in parallel to said corresponding output-side boundary cells through the TAP circuit, and a communication apparatus having a plurality of the communication elements, terminal equipments separately connected to each of said communication elements, for inputting and outputting the data to/from said communication elements through said data input and output lines; and a host computer, in which the communication elements are connected in series to the host computer.

Abstract: The monitoring control apparatus according to the present invention performs a test on each integrated circuit that supports the boundary scan test method loaded on CPU board 4 and control board 5, and on the connection relationships of these integrated circuits, by a boundary scan controller board 7 like that shown, for example, in FIG. 1. If an abnormality is detected in CPU board 4 or control board 5, an alarm apparatus 9 is activated which emits an alarm. Moreover, if the type of abnormality is such that there is the risk of it having a significant effect on the operation of a robot 3, which is the target of this monitoring and control, from the viewpoint of safety, main power supply apparatus 6 of robot 3 is interrupted to prevent in advance robot 3 from running out of control.