[Dnsmasq-discuss] disabling reverse dns lookup in dnsmasq

[/dev/rob0]

On Wed, Feb 17, 2016 at 09:12:29PM +0100, Guy Wijnants wrote:
> Is there a way to enable reverse lookup for a certain type of 
> network in dnsmasq? Like requests comming from 192.168.0.0/24 and 
> and disable reverse lookup for the rest?

$Subject notwithstanding, note that the OP in this thread was not 
really asking about REVERSE lookup; it was about disabling RECURSIVE 
queries.

Nevertheless we can't gripe at you for thread hijacking when your 
question actually brings the thread in line with its Subject. :)

I can't speak authoritatively (pardon the pun) on this, but I am 
pretty sure you'd need a feature like BIND's view feature for this; 
dnsmasq is about simple configuration and commonly-used features.
Most sites don't need views (and many who do set up views have 
overcomplicated things. ;) )

In BIND you'd have one view which is authoritative for all of the 
in-addr.arpa zone:

...
view "no-reverse" {
	match-clients { 192.168.0.0/24; };
	...
	zone "in-addr.arpa" IN {
		type master;
		file "in-addr.arpa";
	};
};
view "default" {
	match-clients { "any"; };
	...
};
...

...where the "in-addr.arpa" zone file has only SOA and NS with no 
other records such as PTR.
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