Abstract: A communication management system includes: a normal signature list which stores a list of signatures of normal communication; a search circuit which acquires communication data and searches the normal signature list to check if the signature of the communication data appears in the list; and a warning unit which issues a warning when communication data does not match any signature in the normal signature list. An operator terminal includes: a determination result acquisition unit which indicates whether or not communication data against which a warning has been issued is normal; and a normal signature list update unit which, when communication data against which a warning has been issued is found to be normal, adds the signature of the communication data to the normal signature list.

Abstract: A communication management system comprises a first rule database storing a rule for extracting specific communication data among communication data; a search unit searching the first rule database to check if the communication data complies with a rule stored therein; an output unit which, when the communication data complies with the rule stored in the first rule database, outputs the communication data; an update unit accepting a change in a rule and updating it; a second rule database storing the updated rule changed by the update unit; and a database server transmitting the updated rule from the second rule database to the first rule database, and reflects in real time, the change in a rule.

Abstract: A communication management system includes a terminal which has a peer to peer connection to communicate with a node conducting peer to peer communication, a content detector which, when the terminal receives from the node a content of which distribution should be controlled, detects identification information of the content, and a communication control apparatus which refers to the detected identification information to control transmission of the content of which distribution should be controlled.

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: The present invention provides a technique for outputting an appropriate message to a terminal. A communication control apparatus 10 includes: a message retaining unit 132 which retains a message to be transmitted to a user's terminal; a communication control apparatus 10 including a search unit which acquires communication data transmitted from or to a user's terminal and searches the communication data for identification information of a user's terminal to which a message is transmitted; and a message output unit 131 which, when the communication data includes identification information of a user's terminal to which a message is transmitted, reads out a message from the message retaining unit 132 and transmits the message to the user's terminal.

Abstract: A communication management system includes a terminal which has a peer to peer connection to communicate with a node conducting peer to peer communication, a content detector which, when the terminal receives from the node a content of which distribution should be controlled, detects identification information of the content, and a communication control apparatus which refers to the detected identification information to control transmission of the content of which distribution should be controlled.

Abstract: In a communication management system, a communication control apparatus includes: a normal signature list which stores a list of signatures of normal communication; a search circuit which acquires communication data and searches the normal signature list storing signatures of normal communication to check if the signature of the communication data appears in the list; and a process execution circuit functioning as a warning unit which issues a warning when there is detected communication data of which the signature does not match any signature of normal communication stored in the normal signature list.

Abstract: In a communication management system, a communication control apparatus includes: a first communication control unit which acquires communication data from an upstream network and provides the communication data to a search circuit; a rule database which stores a rule for extracting specific communication data among communication data; a search circuit which acquires communication data and searches the rule database to check if the communication data complies with a rule stored in the database; a process execution circuit functioning as an output unit which, when there is detected communication data complying with a rule stored in the rule database, replicates the communication data and outputs the replica; and a second communication control unit which transmits communication data to a downstream network.

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.