DNS glue record 胶水记录

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glue record 胶水记录 , 是登记在域名服务商的核心记录, 如果你的域名需要由自己的NS来解析的话

检查的办法很简单, 先查出对应的根服务器

#dig NS com

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> NS com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61412
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 12

;; QUESTION SECTION:
;com. IN NS

;; ANSWER SECTION:
com. 82334 IN NS b.gtld-servers.net.
com. 82334 IN NS j.gtld-servers.net.
com. 82334 IN NS m.gtld-servers.net.
com. 82334 IN NS i.gtld-servers.net.
com. 82334 IN NS f.gtld-servers.net.
com. 82334 IN NS a.gtld-servers.net.
com. 82334 IN NS g.gtld-servers.net.
com. 82334 IN NS h.gtld-servers.net.
com. 82334 IN NS l.gtld-servers.net.
com. 82334 IN NS k.gtld-servers.net.
com. 82334 IN NS c.gtld-servers.net.
com. 82334 IN NS d.gtld-servers.net.
com. 82334 IN NS e.gtld-servers.net.

;; ADDITIONAL SECTION:
b.gtld-servers.net. 23540 IN A 192.33.14.30
b.gtld-servers.net. 46911 IN AAAA 2001:503:231d::2:30
j.gtld-servers.net. 23540 IN A 192.48.79.30
j.gtld-servers.net. 46911 IN AAAA 2001:502:7094::30
m.gtld-servers.net. 85907 IN A 192.55.83.30
m.gtld-servers.net. 46911 IN AAAA 2001:501:b1f9::30
i.gtld-servers.net. 44730 IN A 192.43.172.30
i.gtld-servers.net. 46911 IN AAAA 2001:503:39c1::30
f.gtld-servers.net. 23540 IN A 192.35.51.30
f.gtld-servers.net. 46911 IN AAAA 2001:503:d414::30
a.gtld-servers.net. 55315 IN A 192.5.6.30
a.gtld-servers.net. 46911 IN AAAA 2001:503:a83e::2:30

;; Query time: 1 msec
;; SERVER: 10.4.1.1#53(10.4.1.1)
;; WHEN: Tue Aug 24 11:46:33 2021
;; MSG SIZE rcvd: 509

从里边的结果中挑出一个NS即可

#dig NS iqiyi.com @d.gtld-servers.net.

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.7 <<>> NS iqiyi.com @d.gtld-servers.net.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59595
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 4
;; WARNING: recursion requested but not available

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

;; AUTHORITY SECTION:
iqiyi.com. 172800 IN NS ns1.iqiyi.com.
iqiyi.com. 172800 IN NS ns2.iqiyi.com.
iqiyi.com. 172800 IN NS ns3.iqiyi.com.
iqiyi.com. 172800 IN NS ns4.iqiyi.com.

;; ADDITIONAL SECTION:
ns1.iqiyi.com. 172800 IN A 43.225.84.1
ns2.iqiyi.com. 172800 IN A 43.225.85.1
ns3.iqiyi.com. 172800 IN A 43.225.84.1
ns4.iqiyi.com. 172800 IN A 43.225.85.1

以上additional section就是胶水记录了

也可以用这个网站查询并做一些相关检查:

http://www.webdnstools.com/dnstools/check-domain-results

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