Bug 1170 - 'inform' local-zone uses local-data
'inform' local-zone uses local-data
Status: RESOLVED FIXED
Product: unbound
Classification: Unclassified
Component: server
unspecified
Other All
: P5 normal
Assigned To: unbound team
Depends on:
Blocks:
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Reported: 2016-12-01 23:39 CET by JINMEI Tatuya
Modified: 2016-12-05 13:59 CET (History)
2 users (show)

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Description JINMEI Tatuya 2016-12-01 23:39:20 CET
If you configure an 'inform' type of local-zone with local-data:

	local-zone: example.com inform
	local-data: 'www.example.com IN A 192.0.2.1'

and send a query for that local data, unbound returns that local data:

% dig @127.0.0.1 www.example.com +short  
192.0.2.1

Is that intentional?  example.conf says

	# o inform resolves normally, but logs client IP address

and unbound.conf(5) says 'The query is answered normally.'.
"resolves/answered normally" doesn't sound like using the local-data.
In that case either the actual behavior or the documentation is
incorrect (or at least the doc can be confusing IMO).

I've confirmed this for svn trunk revision 3943.
Comment 1 Wouter Wijngaards 2016-12-02 08:31:41 CET
Hi Jinmei,

Yes that was intentional, it resolves like the type 'transparent'.  Most people, I guess, don't give a local-data.  But if you do, it works like expected.  Do you think the documentation should be changed?

As a feature, it is not that useful.  But it is also not really a bug.

Best regards, Wouter
Comment 2 JINMEI Tatuya 2016-12-02 16:48:40 CET
okay, in that case I'd suggest revising example.conf from:

	# o inform resolves normally, but logs client IP address

to:

	# o inform same as transparent, but also logs client IP address

and unbound.conf(5) from:

                 The  query  is  answered  normally.   The  client  IP address..

to:

                 The query is answered like 'transparent'.  In
                 addition, the client IP address...
Comment 3 Wouter Wijngaards 2016-12-05 13:59:30 CET
Hi Jinmei,

Adjusted the documentation.  Thanks for the report.

Best regards, Wouter