Client controlled domain name service (DNS) resolution
US10999240B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jan 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/4552
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a domain name system (DNS) server processes a DNS query based on a policy statement that is attached to the DNS query. Upon receiving the DNS query, the DNS server executes one or more commands specified in the policy statement to generate a query state. The query state controls DNS resolution behavior that the DNS server implements as part of processing the DNS query. The DNS server then performs one or more DNS resolution operations based on DNS query and the query state to generate a response. Advantageously, because the semantics of the policy statement are encapsulated within the policy statement, the policy statement enables a client to unambiguously control DNS resolution behavior. By contrast, conventional DNS resolution guidance mechanisms that rely on DNS servers to infer policies based on client data may not reflect the preferences of the clients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.