watchNS/google.comについて、ここに記述してください。


$ dig -t ns google.com @ns4.google.com
{{{
; <<>> DiG 9.9.5-3ubuntu0.8-Ubuntu <<>> -t ns google.com @ns4.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11265
;; flags: qr aa rd; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 4
;; WARNING: recursion requested but not available

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

;; ANSWER SECTION:
google.com.		345600	IN	NS	ns1.google.com.
google.com.		345600	IN	NS	ns3.google.com.
google.com.		345600	IN	NS	ns2.google.com.
google.com.		345600	IN	NS	ns4.google.com.

;; ADDITIONAL SECTION:
ns1.google.com.		345600	IN	A	216.239.32.10
ns3.google.com.		345600	IN	A	216.239.36.10
ns2.google.com.		345600	IN	A	216.239.34.10
ns4.google.com.		345600	IN	A	216.239.38.10

;; Query time: 99 msec
;; SERVER: 216.239.38.10#53(216.239.38.10)
;; WHEN: Wed Jul 13 21:14:25 JST 2016
;; MSG SIZE  rcvd: 164
}}}

$ dig -t ns l.google.com @ns4.google.com
{{{
; <<>> DiG 9.9.5-3ubuntu0.8-Ubuntu <<>> -t ns l.google.com @ns4.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38314
;; flags: qr aa rd; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 4
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;l.google.com.			IN	NS

;; ANSWER SECTION:
l.google.com.		86400	IN	NS	ns4.google.com.
l.google.com.		86400	IN	NS	ns3.google.com.
l.google.com.		86400	IN	NS	ns2.google.com.
l.google.com.		86400	IN	NS	ns1.google.com.

;; ADDITIONAL SECTION:
ns4.google.com.		345600	IN	A	216.239.38.10
ns3.google.com.		345600	IN	A	216.239.36.10
ns2.google.com.		345600	IN	A	216.239.34.10
ns1.google.com.		345600	IN	A	216.239.32.10

;; Query time: 96 msec
;; SERVER: 216.239.38.10#53(216.239.38.10)
;; WHEN: Wed Jul 13 21:14:35 JST 2016
;; MSG SIZE  rcvd: 166
}}}