[linux] Server returned error NXDOMAIN

[Frans van Berckel]

On Tue, 2019-04-02 at 22:19 +0200, Daniel C. von Asmuth wrote:
> Aldus schreef Geert Stappers op Tue, Apr 02, 2019 at 08:48:06PM
> +0200:
> > On Tue, Apr 02, 2019 at 11:20:27AM +0200, Frans van Berckel wrote:
> > > On Tue, 2019-04-02 at 08:39 +0200, Paul Slootman wrote:
> > > > On Mon 01 Apr 2019, Frans van Berckel wrote:
> > > > > Wat blijkt Transmission-daemon probeert je domein te
> > > > > gebruiken.
> > > > 
> > > > } # tcpdump -vni any port domain
> > > > > 
> > > > > 14:27:20.706197 IP (tos 0x0, ttl 64, id 4645, offset 0, flags
> > > > > [DF], proto UDP (17), length 80) 192.168.1.251.55417 >
> > > > > 194.109.6.66.53: 16774+ [1au] AAAA? TraCKEr.copPerSurFeR.tK.
> > > > > (52)
> > 
> > $ host -t AAAA TraCKEr.copPerSurFeR.tK
> > TraCKEr.copPerSurFeR.tK has no AAAA record
> > $ host -t A TraCKEr.copPerSurFeR.tK
> > TraCKEr.copPerSurFeR.tK has address 62.138.0.158
> 
> En als Frans dezelfde queries uitvoert en in beide gevallen de
> systemd-resolved de code NXDOMAIN retourneert?

In beide gevallen wordt er geen code NXDOMAIN retourneert.

# host -t AAAA TraCKEr.copPerSurFeR.tK
TraCKEr.copPerSurFeR.tK has no AAAA record

23:58:41.431001 IP (tos 0x0, ttl 64, id 36186, offset 0, flags [none],
proto UDP (17), length 69) 127.0.0.1.45849 > 127.0.0.53.53: 48680+
AAAA? TraCKEr.copPerSurFeR.tK. (41)

23:58:41.431430 IP (tos 0x0, ttl 64, id 42352, offset 0, flags [DF],
proto UDP (17), length 69) 127.0.0.53.53 > 127.0.0.1.45849: 48680
0/0/0 (41)

# host -t A TraCKEr.copPerSurFeR.tK
TraCKEr.copPerSurFeR.tK has address 62.138.0.158

23:59:08.382091 IP (tos 0x0, ttl 64, id 38449, offset 0, flags [none],
proto UDP (17), length 69) 127.0.0.1.39003 > 127.0.0.53.53: 64212+ A?
TraCKEr.copPerSurFeR.tK. (41)

23:59:08.382587 IP (tos 0x0, ttl 64, id 43677, offset 0, flags [DF],
proto UDP (17), length 85) 127.0.0.53.53 > 127.0.0.1.39003: 64212 1/0/0
TraCKEr.copPerSurFeR.tK. A 62.138.0.158 (57)

Met vriendelijke groet,

-- 
Frans van Berckel
Media Engineer / Linux Master
LinkedIn: https://www.linkedin.com/in/fransvberckel/