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NETWORK SYSTEM USING NAME SERVER WITH PSEUDO HOST NAME AND PSEUDO IP ADDRESS GENERATION FUNCTION

  • US 20080034118A1
  • Filed: 10/02/2007
  • Published: 02/07/2008
  • Est. Priority Date: 03/29/2002
  • Status: Abandoned Application
First Claim
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1. A name server for managing correspondence information that registers a host name corresponding to an IP address by using the IP address as a key, with respect to communication nodes belonging to a network of a prescribed range, the name server comprising:

  • a reception unit configured to receive a reverse look-up request to which a host name corresponding to a specific IP address should be returned, from a request source node;

    a search unit configured to search through the correspondence information by using the specific IP address contained in the reverse look-up request as a key, when the reverse look-up request is received by the reception unit;

    a generation unit configured to generate a pseudo host name, when a host name corresponding to the specific IP address contained in the reverse look-up request is not obtained as a result of search by the search unit; and

    a transmission unit configured to return the host name corresponding to the specific IP address contained in the reverse look-up request to the request source node, when the host name corresponding to the specific IP address contained in the reverse look-up request is obtained as a result of search by the search unit, and return the pseudo host name generated by the generation unit to the request source node, when the host name corresponding to the specific IP address contained in the reverse look-up request is not obtained as a result of search by the search unit.

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