[Dnsmasq-discuss] Mac Darwin confusion

[Geert Stappers]

On Mon, Aug 03, 2020 at 07:04:47PM +0200, No Yes No Questions wrote:
> On Mon, Aug 03, 2020 at 10:44:07PM +0700, Bernd Prager wrote:
> > Hi all,
> > 
> > I got something I can't wrap my head around. I have a QNAP NAS that I
> > thought would be nice for hosting a DNSMASQ service for DNS and DHCP. Setup
> > went smooth and all my Linux clients behave wonderfully, except my Mac
> > client:
> > 
> > Querying a host from Linux goes perfect:
> > 
> > -=[22:29:35][bernd at hoenir ~]=-
> >  dig @qnap freyja
> > 
> > ; <<>> DiG 9.11.3-1ubuntu1.12-Ubuntu <<>> @qnap freyja
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24213
> > ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
> > 
> > ;; QUESTION SECTION:
> > ;freyja.                                IN      A
> > 
> > ;; ANSWER SECTION:
> > freyja.                 0       IN      A 192.168.1.7
> > 
> > ;; Query time: 0 msec
> > ;; SERVER: 192.168.1.5#53(192.168.1.5)
> 
> .5
> 
> 
> > ;; WHEN: Mon Aug 03 22:29:37 +07 2020
> > ;; MSG SIZE  rcvd: 51
> > 
> > -=[22:29:37][bernd at hoenir ~]=-
> >  ping -c 1 freyja
> > PING freyja.prager.homeip.net (192.168.1.7) 56(84) bytes of data.
> > 64 bytes from freyja.prager.homeip.net (192.168.1.7): icmp_seq=1 ttl=64
> > time=131 ms
> > 
> > --- freyja.prager.homeip.net ping statistics ---
> > 1 packets transmitted, 1 received, 0% packet loss, time 0ms
> > rtt min/avg/max/mdev = 131.374/131.374/131.374/0.000 ms
> > 
> > Now the same query from my Mac sees the host but still can't connect to it:
> > 
> > [bernd at loki ~$ dig @qnap freyja
> > 
> > ; <<>> DiG 9.10.6 <<>> @qnap freyja
> > ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54217
> > ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
> > 
> > ;; QUESTION SECTION:
> > ;freyja.                IN    A
> > 
> > ;; ANSWER SECTION:
> > freyja.            0    IN    A    192.168.1.7
> > 
> > ;; Query time: 7 msec
> > ;; SERVER: 192.168.1.5#53(192.168.1.5)
> 
> The same .5
> 
> 
> > ;; WHEN: Mon Aug 03 22:29:25 +07 2020
> > ;; MSG SIZE  rcvd: 51
> > 
> > [bernd at loki ~$ ping -c 1 freyja
> > ping: cannot resolve freyja: Unknown host
> > 
> > Does anybody have an idea what I am missing?
> 
> Yes
> 

DNS query tool `dig` at the Linux system does add domain name to the request.

`dig` at the MacOS system doesn't add a domain name, which is correct behaviour.


For `ping` is it OK to add a domainname. It seems the Mac is not aware
of domain name.

Find a way to tell the Mac about the .prager.homeip.net domain name.


Groeten
Geert Stappers
-- 
Silence is hard to parse