Knowledgebase: DNS
Do your authoritative name servers respond to recursive queries?
Posted by Jennifer Oles on 02 April 2009 06:44 PM

Our authoritative name servers do not respond to recursive queries but they do respond to a global wild card for domains that do not exist in our systems. If our name servers are specifically asked for a domain that is not configured in our system, the query will be sent to the IP address of a webpage that indicates we do not provide DNS services for the requested host.

A very simple check to confirm this is a common DIG query:

dig +recurse www.google.com @ns10.dnsmadeeasy.com
If you do that you will see:; <<>> DiG 9.6.2rc1 <<>> +recurse www.google.com @ns10.dnsmadeeasy.com;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55020;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 0;; WARNING: recursion requested but not available

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