Web browser or web service based detection of internet facing DNS server

摘要

A web browser or web service based system for determining the IP address of the Internet facing DNS server on a given network includes an input interface and a processor. The input interface is configured to receive a request for a web page from a client system. The request includes a testing URL. The processor is configured to determine an ID code from the testing URL; determine the IP address of the Internet facing DNS server used, based at least in part on the ID code; and provide the IP address of the Internet facing DNS server using the web page.