MacPorts bind9 dig not working correctly

[Larry Stone]

Good observation. Still, what the MacPorts version of dig is doing is not the default (or at least hasn’t been (see next paragraph) as I mentioned in my first post, I used to build BIND from source).

But one other thought I just had is it’s a change with the latest version of BIND. The Apple provided dig is old enough that it must be BIND 9.16 and the source-built version I tested with is also from the 9.16 tree. But the MacPorts version is from the new 9.18 tree. Unfortunately, I no longer have a source-built 9.18 copy of dig to test with.

-- 
Larry Stone
lstone19 at stonejongleux.com





> On Jun 26, 2022, at 1:54 AM, Mark Lucas <mllists at arc.co.uk> wrote:
> 
> Perhaps this message when using  /usr/bin/dig  without +short might be the answer…?
> 
> ;; Got answer:
> ;; WARNING: .local is reserved for Multicast DNS
> ;; You are currently testing what happens when an mDNS query is leaked to DNS
> 
> I guess the MacPorts version considers this a security issue?
> 
>> On 26 Jun 2022, at 04:56, Larry Stone <lstone19 at stonejongleux.com> wrote:
>> 
>> I’m fairly new to MacPorts and just installed it on a Macintosh I use for, among other thing, network monitoring. One of things it does is check that other computers on our network are up by getting the current IP address for the computer by using dig to make a mDNS query (dig +short @224.0.0.251 -p 5353 hostname.local). 
>> 
>> With the MacPorts version of dig provided in the Bind9 port, it fails:
>> /opt/local/bin/dig +short @224.0.0.251 -p 5353 hostname.local
>> ;; connection timed out; no servers could be reached
>> 
>> Using the Apple provided version in /usr/bin, it works:
>> /usr/bin/dig +short @224.0.0.251 -p 5353 hostname.local
>> 192.168.0.82
>> 
>> And on an older system where I had built Bind from source, it works:
>> /usr/local/bin/dig +short @224.0.0.251 -p 5353 hostname.local
>> 192.168.0.82
>> 
>> The MacPorts version of dig works fine for regular DNS queries. It’s only when adding "@224.0.0.251 -p 5353” for the mDNS query that it fails. Any ideas as to why this fails with the MacPorts version?
>> 
>> -- 
>> Larry Stone
>> lstone19 at stonejongleux.com
>> 
>> 
>> 
>> 
>> 
>