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facebook.com. 172800 IN NS b.ns.facebook.com.
facebook.com. 172800 IN NS c.ns.facebook.com.
facebook.com. 172800 IN NS d.ns.facebook.com.
Size: a a a
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% dig a.ns.facebook.com @a.gtld-servers.net
; <<>> DiG 9.10.6 <<>> a.ns.facebook.com @a.gtld-servers.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32917
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 9
;; WARNING: recursion requested but not available
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;a.ns.facebook.com. IN A
;; AUTHORITY SECTION:
facebook.com. 172800 IN NS a.ns.facebook.com.
facebook.com. 172800 IN NS b.ns.facebook.com.
facebook.com. 172800 IN NS c.ns.facebook.com.
facebook.com. 172800 IN NS d.ns.facebook.com.
;; ADDITIONAL SECTION:
a.ns.facebook.com. 172800 IN A 129.134.30.12
a.ns.facebook.com. 172800 IN AAAA 2a03:2880:f0fc:c:face:b00c:0:35
b.ns.facebook.com. 172800 IN A 129.134.31.12
b.ns.facebook.com. 172800 IN AAAA 2a03:2880:f0fd:c:face:b00c:0:35
c.ns.facebook.com. 172800 IN A 185.89.218.12
c.ns.facebook.com. 172800 IN AAAA 2a03:2880:f1fc:c:face:b00c:0:35
d.ns.facebook.com. 172800 IN A 185.89.219.12
d.ns.facebook.com. 172800 IN AAAA 2a03:2880:f1fd:c:face:b00c:0:35
;; Query time: 86 msec
;; SERVER: 192.5.6.30#53(192.5.6.30)
;; WHEN: Mon Oct 04 19:54:04 MSK 2021
;; MSG SIZE rcvd: 284
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