城市(city): unknown
省份(region): unknown
国家(country): United States
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 <<>> 143.194.249.192
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41544
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;143.194.249.192. IN A
;; AUTHORITY SECTION:
. 365 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2022011002 1800 900 604800 86400
;; Query time: 91 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Jan 11 12:11:47 CST 2022
;; MSG SIZE rcvd: 108b'Host 192.249.194.143.in-addr.arpa. not found: 3(NXDOMAIN)
'server can't find 143.194.249.192.in-addr.arpa: SERVFAIL