These are chat archives for CZ-NIC/knot-resolver

6th
Nov 2018
edoo
@ookangzheng
Nov 06 2018 10:45
why qname test will fail today
cloudflare too
it return SERVFAIL
edoo
@ookangzheng
Nov 06 2018 10:59

dig from knot-resolver

dig txt qnamemintest.internet.nl -p 53

; <<>> DiG 9.11.5-1-Debian <<>> txt qnamemintest.internet.nl -p 53
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 2041
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;qnamemintest.internet.nl.    IN    TXT

;; ANSWER SECTION:
qnamemintest.internet.nl. 168    IN    CNAME    a.b.qnamemin-test.internet.nl.

;; Query time: 32 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Nov 06 10:59:22 UTC 2018
;; MSG SIZE  rcvd: 85

dig from unbound

; <<>> DiG 9.11.5-1-Debian <<>> txt qnamemintest.internet.nl -p 51
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3523
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;qnamemintest.internet.nl.    IN    TXT

;; ANSWER SECTION:
qnamemintest.internet.nl. 199    IN    CNAME    a.b.qnamemin-test.internet.nl.
a.b.qnamemin-test.internet.nl. 200 IN    TXT    "HOORAY - QNAME minimisation is enabled on your resolver :)!"

;; Query time: 0 msec
;; SERVER: 127.0.0.1#51(127.0.0.1)
;; WHEN: Tue Nov 06 10:58:50 UTC 2018
;; MSG SIZE  rcvd: 157
Vladimír Čunát
@vcunat
Nov 06 2018 11:29
They most likely have some DNSSEC problem: http://dnsviz.net/d/qnamemintest.internet.nl/W-F3eQ/dnssec/
edoo
@ookangzheng
Nov 06 2018 11:30
hmm, okay I see. Thanks
Vladimír Čunát
@vcunat
Nov 06 2018 14:16
We now documented this frequent use case for STUB + NO_CACHE: https://knot-resolver.readthedocs.io/en/latest/modules.html#replacing-part-of-the-dns-tree
It's funny how you ran into this at once for alternative TLDs and "corporate" DNS subtrees.
edoo
@ookangzheng
Nov 06 2018 18:32
🎉
Robert Šefr
@robcza
Nov 06 2018 18:34
It is funny :) thanks for helping and for the documentation