[Dnsmasq-discuss] dig for an ip address returns A record instead of NXDOMAIN

[/dev/rob0]

On Wed, Mar 30, 2016 at 01:05:32PM -0400, Jeff Weber wrote:
> I'm using dnsmasq as a local dns cache on some servers and I've 
> noticed recently (due to some buggy software) that if you dig for 
> an ip address you get an A record back which is set to that ip 

The proper use of dig of an IP address (for example, 192.0.2.53) is 
"dig -x 192.0.2.53".  This changes the query to a type PTR for
53.2.0.192.in-addr.arpa.

By default dig queries for A, and "dig 192.0.2.53" will cause a 
recursive server to ask the root servers for a "53" top-level domain.
The fact that ICANN has not yet tried to turn all-numeric TLDs into 
money makers notwithstanding, there is no protocol reason why it 
cannot be done.

> address. I went through the manual and wasn't able to find an 
> option which seems like it could make this configurable. Is there a 
> way to turn this response into an NXDOMAIN instead of returning the 
> synthesized A record?
> 
> I'm using dnsmasq verision 2.66 on a Centos 7 machine.
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