@pobrn
Sorry for replying this late, this problem doesn’t come so often lately. And thank you.
~ dig example.com
; <<>> DiG 9.16.6 <<>> example.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3264
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: d643c61cf04cd072010000005f889e7db5d6bf8ada5d18e5 (good)
;; QUESTION SECTION:
;example.com. IN A
;; ANSWER SECTION:
example.com. 72940 IN A 93.184.216.34
;; Query time: 16 msec
;; SERVER: 10.0.0.138#53(10.0.0.138)
;; WHEN: Thu Oct 15 22:09:48 IDT 2020
;; MSG SIZE rcvd: 84
~ dig example.com @10.0.0.138
; <<>> DiG 9.16.6 <<>> example.com @10.0.0.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12472
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 3a06121d385da7d5010000005f889e817719e4edf6eb18d4 (good)
;; QUESTION SECTION:
;example.com. IN A
;; ANSWER SECTION:
example.com. 72936 IN A 93.184.216.34
;; Query time: 13 msec
;; SERVER: 10.0.0.138#53(10.0.0.138)
;; WHEN: Thu Oct 15 22:09:52 IDT 2020
;; MSG SIZE rcvd: 84
~ dig example.com @1.1.1.1
; <<>> DiG 9.16.6 <<>> example.com @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36777
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: f1c208e9b39e8a30010000005f889e8555bdd15f62108bb2 (good)
;; QUESTION SECTION:
;example.com. IN A
;; ANSWER SECTION:
example.com. 36357 IN A 93.184.216.34
;; Query time: 16 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Thu Oct 15 22:09:56 IDT 2020
;; MSG SIZE rcvd: 84
~ dig example.com +trace
;; Warning: Message parser reports malformed message packet.
; <<>> DiG 9.16.6 <<>> example.com +trace
;; global options: +cmd
. 468252 IN NS i.root-servers.net.
. 468252 IN NS d.root-servers.net.
. 468252 IN NS f.root-servers.net.
. 468252 IN NS j.root-servers.net.
. 468252 IN NS b.root-servers.net.
. 468252 IN NS l.root-servers.net.
. 468252 IN NS a.root-servers.net.
. 468252 IN NS e.root-servers.net.
. 468252 IN NS h.root-servers.net.
. 468252 IN NS c.root-servers.net.
. 468252 IN NS m.root-servers.net.
. 468252 IN NS g.root-servers.net.
. 468252 IN NS k.root-servers.net.
couldn't get address for 'i.root-servers.net': not found
couldn't get address for 'd.root-servers.net': not found
couldn't get address for 'f.root-servers.net': not found
couldn't get address for 'j.root-servers.net': not found
couldn't get address for 'b.root-servers.net': not found
couldn't get address for 'l.root-servers.net': not found
couldn't get address for 'a.root-servers.net': not found
couldn't get address for 'e.root-servers.net': not found
couldn't get address for 'h.root-servers.net': not found
couldn't get address for 'c.root-servers.net': not found
couldn't get address for 'm.root-servers.net': not found
couldn't get address for 'g.root-servers.net': not found
couldn't get address for 'k.root-servers.net': not found
dig: couldn't get address for 'i.root-servers.net': no more