METHOD FOR MITIGATION OF UNAUTHORIZED DATA TRANSFER OVER DOMAIN NAME SERVICE (DNS)
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United States of America Patent
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Issued Date -
Sep 1, 2016
app pub date -
Feb 26, 2015
filing date -
Feb 26, 2015
priority date (Note) -
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Abstract
Methods and systems for prevent unauthorized use of a Domain Name System (DNS) channel in an organization are disclosed. These methods and systems comprise elements of hardware and software for receiving a packet; determining whether the packet is a DNS packet or a non-DNS packet; if the packet is a DNS packet, determining whether the destination address of the packet denotes a legitimate DNS server; and, according to whether the destination address of the packet denotes a legitimate DNS server, permitting the packet.
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