Identifying services provided over secured connections using DNS caching
US9521060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2014 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Mar 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for communication includes intercepting Domain Name System (DNS) messages that are sent in a communication network in preparation for setting up respective communication sessions that provide respective services associated with respective service types. DNS information that is indicative of the respective service types is extracted from the intercepted DNS messages, and the extracted DNS information is cached. A service type associated with a given communication session is identified using the cached DNS information, and a traffic policy is applied to the given communication session depending on the identified service type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.