Systems and methods for detecting the insertion of poisoned DNS server addresses into DHCP servers
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United States of America Patent
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Feb 5, 2013
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N/A
app pub date -
Nov 24, 2009
filing date -
Nov 24, 2009
priority date (Note) -
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Abstract
A computer-implemented method for detecting the insertion of poisoned DNS server addresses into DHCP servers may include: 1) identifying a DNS server address provided by a DHCP server, 2) determining that the DNS server address provided by the DHCP server differs from a prior DNS server address provided by the DHCP server, 3) determining, due at least in part to the DNS server address differing from the prior DNS server address, that a DNS server located at the DNS server address provided by the DHCP server represents a potential security risk, and then 4) performing a security operation in an attempt to remedy the potential security risk.
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