The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2015
Filed:
May. 24, 2012
Jeffery L. Crume, Raleigh, NC (US);
Jeffery L. Crume, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, system, and computer program product embodied in a computer readable storage medium are disclosed for identifying a rogue domain name service (DNS) server. Embodiments include passively monitoring traffic on a target network; and identifying a DNS resolution response in the traffic on the network. The DNS resolution response includes a mapping of a domain to an internet protocol (IP) address. The DNS resolution response is compared with a preconfigured list of known mappings of domains to IP addresses. Based on the results of the comparison, it can be determined whether the DNS resolution response is correct. In cases where the DNS resolution response is incorrect, the provider of the DNS resolution response is a rogue DNS server.