Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Abhishek Tiwari0
Raunak Pandya0
Rama Krishna Amaravadi0
Date of Patent
April 12, 2016
0Patent Application Number
129703710
Date Filed
December 16, 2010
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In a computing device a domain name system (DNS) query is generated and sent, and a check is made as to whether a verified DNS response to the DNS query is received. The computing device is determined to be inside a particular network if a verified DNS response is received, and is determined to be outside that particular network if a verified DNS response is not received. A DNS response can be determined to be verified if both the DNS response has an expected value and the DNS response is digitally signed by a trusted authority, and otherwise can be determined to be not verified.
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