Is there a way I can trace a DNS request to see where the answer is coming from?
Our network has internal DNS servers that provide internal IP address resolution, and we use EasyDNS to host our public-facing DNS.
The situation is that EasyDNS is set up correctly for a certain address with its external IP, but when I do a dig from within our network, I get the (correct) internal IP - but the domain does not appear to be set up on any of our internal DNS servers. Our primary DNS server (Active Directory) lists the domain as cached, but doesn't say from where.
How can I trace where dig is getting its results from?