9.18 behavior change for mDNS queries with dig

[Larry Stone]

Thanks. Submitted - #3428.

-- 
Larry Stone
lstone19 at stonejongleux.com





> On Jun 27, 2022, at 1:26 AM, Evan Hunt <each at isc.org> wrote:
> 
> On Sun, Jun 26, 2022 at 10:00:08PM -0500, Larry Stone wrote:
>> I recently moved from 9.16 to 9.18 and just noticed that dig no longer
>> resolves mDNS queries.
>> 
>> With 9.16:
>> dig +short @224.0.0.251 -p 5353 hostname.local
>> 192.168.0.82
>> 
>> With 9.18:
>> dig +short @224.0.0.251 -p 5353 hostname.local
>> ;; connection timed out; no servers could be reached
>> 
>> I can’t find anything in the Release Notes (or anyplace else) about this. 
> 
> "dig" was rewritten in 9.18 to use the libuv-based network manager
> instead of the old socket code; it's probably related to that.  Please
> open a bug report at https://gitlab.isc.org/isc-projects/bind9/-/issues,
> we'll look into it.
> 
> -- 
> Evan Hunt -- each at isc.org
> Internet Systems Consortium, Inc.