QNAME minimisation question

[Nick Tait]

Hi Stace.

The transport protocol used to ask the question is (or should be) 
independent of the question being asked. So in this case asking for a 
PTR record for an IPv6 address wouldn't change whether IPv4 or IPv6 is 
used to make the recursive queries.

I've done a bit more testing on this, and it seems like if you use the 
+ns option, delv ignores the -4, -6 and -b options. I'm not sure if that 
is by design or not, but it would be useful to be able to control which 
source IP address delv uses for queries and whether delv queries for A 
or AAAA records? (It would also be good if it queried for both by 
default -- i.e. if neither -4 or -6 were specified?)

Can anyone advise whether this something I should raise a bug report for?

Nick.

P.S. Using +ns also causes delv to ignore a server specified with the @ 
option, and in this case it logs a message like: ";; WARNING: using 
internal name server mode: '@8.8.8.8' will be ignored"

On 03/06/2025 22:36, Stacey Marshall wrote:
> On 3 Jun 2025, at 10:29, Nick Tait via bind-users wrote:
>
>> But I also noticed that delv only makes A queries (not AAAA), and even if I specify "-6" on the command-line it makes no difference?
> Have yo tried using an IPv6 address with the -x option?
>
>
> delv -x ::ffff:45.90.5.195 +ns +qmin +maxqueries=100
>
>
> --
> Stace