Patent · US Active

Domain name service (DNS) server cache table validation

US11575646B2 · kind B2 · utility

1Cited by

17References

20Claims

0Family size

Assignee

VMware LLC · US

Inventors

Shirish Vijayvargiya · Pune, IN
Sunil Hasbe · Jamkhed, IN
Nakul Ogale · Palo Alto, US
Sachin Shinde · Pune, IN

Key dates

Filing date	May 15, 2020
Grant date	Feb 7, 2023
Priority date	—
Expiry date	May 15, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04L61/58
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In some embodiments, a method stores domain name system (DNS) resolution mappings from a domain name to an address in a first table. The DNS resolution mappings are intercepted from DNS responses being sent by a DNS server. The first table is sent to a manager for validation of the DNS resolution mappings. Then, a second table is received from the manager that contains validated DNS resolution mappings. The method intercepts a DNS response that includes a domain name to address resolution mapping from the DNS server and validates the domain name to address resolution mapping using a validated DNS resolution mapping in the second table.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.