城市(city): Cambridge
省份(region): Massachusetts
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 <<>> 18.31.195.111
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 1548
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;18.31.195.111. IN A
;; AUTHORITY SECTION:
. 208 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2020040501 1800 900 604800 86400
;; Query time: 54 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Apr 06 05:48:37 CST 2020
;; MSG SIZE rcvd: 117Host 111.195.31.18.in-addr.arpa not found: 2(SERVFAIL)
;; Got SERVFAIL reply from 100.100.2.138, trying next server
;; Got SERVFAIL reply from 100.100.2.138, trying next server
Server: 100.100.2.136
Address: 100.100.2.136#53
** server can't find 111.195.31.18.in-addr.arpa: SERVFAIL