城市(city): unknown
省份(region): unknown
国家(country): None
运营商(isp): unknown
主机名(hostname): unknown
机构(organization): unknown
使用类型(Usage Type): unknown
b; <<>> DiG 9.10.3-P4-Ubuntu <<>> 138.168.34.56
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 15073
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;138.168.34.56. IN A
;; AUTHORITY SECTION:
. 397 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2022011000 1800 900 604800 86400
;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Jan 10 17:20:24 CST 2022
;; MSG SIZE rcvd: 106Host 56.34.168.138.in-addr.arpa not found: 2(SERVFAIL)
b'56.34.168.138.in-addr.arpa canonical name = 254.255.168.138.in-addr.arpa.
254.255.168.138.in-addr.arpa name = 138-168-host.usmc.mil.
Authoritative answers can be found from:
'