Hello,
I use freedns.afraid.org to manage a couple of subdomains with dynamic dns. One of these domains hosted with their free tier is multivac.hpc.tw. Starting on April 16 circa 11:40pm CST dns loookups using 1.1.1.1 started failing (I have a cron that runs every 10 minutes that happens to rely on this which started failing at that time as well). If I use 8.8.8.8 to resolve, it works fine.
$ dig multivac.hpc.tw @1.1.1.1
; <<>> DiG 9.11.5-P4-5.1+b1-Debian <<>> multivac.hpc.tw @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11892
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;multivac.hpc.tw. IN A
;; Query time: 241 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Sun Apr 19 23:09:51 CDT 2020
;; MSG SIZE rcvd: 44
$ dig multivac.hpc.tw @8.8.8.8
; <<>> DiG 9.11.5-P4-5.1+b1-Debian <<>> multivac.hpc.tw @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38347
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;multivac.hpc.tw. IN A
;; ANSWER SECTION:
multivac.hpc.tw. 3599 IN A 98.227.106.177
;; Query time: 70 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Apr 19 23:09:56 CDT 2020
;; MSG SIZE rcvd: 60
$ dig +short CHAOS TXT id.server @1.1.1.1
“ORD”
dnsviz results here: https://dnsviz.net/d/multivac.hpc.tw/dnssec/
Seems like lots of errors, but I don’t know what they mean. Any idea what could have broken circa April 16? And why google’s dns seems to be handling it?
Thanks!