查看域名服务器命令： $ dig -t NS xvideos.com

$ dig -t NS xvideos.com

; <<>> DiG 9.8.3-P1 <<>> -t NS xvideos.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26611 ;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION: ;xvideos.com. IN NS

;; ANSWER SECTION: xvideos.com. 1158 IN NS ns3.randomserver.com. xvideos.com. 1158 IN NS ns1.randomserver.com. xvideos.com. 1158 IN NS ns6.randomserver.com. xvideos.com. 1158 IN NS ns4.randomserver.com. xvideos.com. 1158 IN NS ns2.randomserver.com. xvideos.com. 1158 IN NS ns5.randomserver.com.

;; Query time: 62 msec ;; SERVER: 192.168.3.1#53(192.168.3.1) ;; WHEN: Tue Apr 24 03:48:45 2018 ;; MSG SIZE rcvd: 150