Method, system, service, and computer program product for identifying incorrect domain name to internet protocol (IP) address mappings

摘要

The present invention provides a method, system, service, and computer program product for identifying incorrect domain name to IP address mappings. The method comprises: providing a domain name and a valid IP address for the domain name to a plurality of nodes; and at each node: performing a local domain name system (DNS) lookup for the domain name; determining if an IP address returned by the local DNS lookup comprises the valid IP address for the domain name; and providing a notification that an invalid IP address was returned for the domain name if the IP address returned by the local DNS lookup does not comprise the valid IP address for the domain name.