Invention Grant
- Patent Title: DNS-based determining whether a device is inside a network
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Application No.: US14989567Application Date: 2016-01-06
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Publication No.: US09722966B2Publication Date: 2017-08-01
- Inventor: Raunak Pandya , Abhishek Tiwari , Rama Krishna Amaravadi
- Applicant: Microsoft Technology Licensing, LLC
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Main IPC: H04L29/00
- IPC: H04L29/00 ; H04L29/12 ; H04L29/08 ; H04L29/06
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.
Public/Granted literature
- US20160119276A1 DNS-Based Determining Whether a Device is Inside a Network Public/Granted day:2016-04-28
Information query
