Comments (4)
from lua-resty-dns.
@zhangcunli I don't quite understand your issue. The whole library has no such thing as "cname_type":
agentzh@glass ~/git/lua-resty-dns 1 (master)$ grep cname_type -r .
agentzh@glass ~/git/lua-resty-dns 1 (master)$
from lua-resty-dns.
@zhangcunli when you request an A record from the DNS server, but it doesn't have an A record, it might still reply with a CNAME record if that is available, usually in the additional section you'll find the records that the CNAME points to again.
This is pretty standard DNS behaviour.
Here's a typical example (redacted):
thijs$ dig thuis.tieske.nl
; <<>> DiG 9.10.6 <<>> thuis.tieske.nl
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10909
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;thuis.tieske.nl. IN A
;; ANSWER SECTION:
thuis.tieske.nl. 616 IN CNAME tieske.duckdns.org.
tieske.duckdns.org. 59 IN A 192.168.0.0
;; Query time: 179 msec
;; SERVER: 192.168.50.1#53(192.168.50.1)
;; WHEN: Thu May 16 17:11:39 CEST 2019
;; MSG SIZE rcvd: 101
thijs$
from lua-resty-dns.
@zhangcunli please close if answered
from lua-resty-dns.
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from lua-resty-dns.