Method and apparatus for providing network access control using a domain name system
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United States of America Patent
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Jul 3, 2001
Grant Date -
N/A
app pub date -
Jun 24, 1998
filing date -
Jun 24, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for providing network access control by manipulating a domain name system includes receiving, from a source, a request for an address which corresponds to a host name. A check is made as to whether a requestor corresponding to the request is allowed to access a host system corresponding to the host name. If the requestor is not allowed to access the host system corresponding to the host name, then an indication is provided to the source of the request that the address which corresponds to the host name cannot be located.
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