今天我看到一个包含 DNS 的域名A有记录但没有 DNS国家标准记录。如何创建A沒有記錄国家标准名称服务器？
示例域名为：frankstudios.com
挖掘 A 记录：
root@ubuntu:~# dig @8.8.8.8 -t A frankstudios.com
; <<>> DiG 9.11.3-1ubuntu1.8-Ubuntu <<>> @8.8.8.8 -t A frankstudios.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28479
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;frankstudios.com. IN A
;; ANSWER SECTION:
frankstudios.com. 299 IN A 207.148.248.143
;; Query time: 98 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed Aug 21 11:16:02 UTC 2019
;; MSG SIZE rcvd: 61
挖掘 NS 记录：
root@ubuntu:~# dig @8.8.8.8 -t NS frankstudios.com
; <<>> DiG 9.11.3-1ubuntu1.8-Ubuntu <<>> @8.8.8.8 -t NS frankstudios.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14126
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;frankstudios.com. IN NS
;; AUTHORITY SECTION:
frankstudios.com. 299 IN SOA ns.buydomains.com. hostmaster.buydomains.com. 2015031114 86400 7200 604800 300
;; Query time: 91 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed Aug 21 11:17:00 UTC 2019
;; MSG SIZE rcvd: 106
答案1
尽管 DNS 区域应该包含 NS 记录（因为只有区域内的数据才是权威的，并且这是 RFC 所要求的1034以及[1035][2]）域名的域名服务器通过以下方式发现胶水记录由顶级域名注册商设置。
因此，实际上，域和所有其他记录将在没有区域本身的 NS 记录的情况下工作。
您可以在 whois 记录和+tracedig 选项中轻松看到这一点
dig +trace [email protected] :
. 68508 IN NS m.root-servers.net.
. 68508 IN NS b.root-servers.net.
. 68508 IN NS e.root-servers.net.
. 68508 IN NS i.root-servers.net.
. 68508 IN NS d.root-servers.net.
. 68508 IN NS a.root-servers.net.
. 68508 IN NS f.root-servers.net.
. 68508 IN NS k.root-servers.net.
. 68508 IN NS j.root-servers.net.
. 68508 IN NS h.root-servers.net.
. 68508 IN NS l.root-servers.net.
. 68508 IN NS c.root-servers.net.
. 68508 IN NS g.root-servers.net.
;; Received 228 bytes from 8.8.4.4#53(8.8.4.4) in 5 ms
com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS e.gtld-servers.net.
com. 172800 IN NS f.gtld-servers.net.
com. 172800 IN NS k.gtld-servers.net.
com. 172800 IN NS c.gtld-servers.net.
com. 172800 IN NS i.gtld-servers.net.
com. 172800 IN NS j.gtld-servers.net.
com. 172800 IN NS h.gtld-servers.net.
com. 172800 IN NS l.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
com. 172800 IN NS d.gtld-servers.net.
com. 172800 IN NS g.gtld-servers.net.
com. 172800 IN NS m.gtld-servers.net.
;; Received 494 bytes from 199.9.14.201#53(199.9.14.201) in 75 ms
frankstudios.com. 172800 IN NS ns.buydomains.com. <===== GLUE
frankstudios.com. 172800 IN NS this-domain-for-sale.com. <===== GLUE
;; Received 129 bytes from 192.5.6.30#53(192.5.6.30) in 1829 ms
frankstudios.com. 300 IN A 207.148.248.143
;; Received 50 bytes from 52.20.26.87#53(52.20.26.87) in 22 ms