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这个奇怪的域名s150 只有一个A记录 而无ns记录 请问这是怎么做出来的
[root@dnsmaster ~]# dig s150.
; <<>> DiG 9.3.4-P1 <<>> s150.
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55421
;; flags: qr; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;s150. IN A
;; ANSWER SECTION:
s150. 128 IN A 218.85.156.49
;; Query time: 75 msec
;; SERVER: 218.85.157.99#53(218.85.157.99)
;; WHEN: Mon Jun 29 15:56:43 2009
;; MSG SIZE rcvd: 38
[root@dnsmaster ~]# host -v s150.
Trying "s150"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2644
;; flags: qr; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;s150. IN A
;; ANSWER SECTION:
s150. 128 IN A 218.85.156.49
Received 38 bytes from 218.85.157.99#53 in 75 ms
Trying "s150"
Host s150 not found: 3(NXDOMAIN)
Received 97 bytes from 218.85.157.99#53 in 75 ms
Trying "s150"
Host s150 not found: 3(NXDOMAIN)
Received 97 bytes from 218.85.157.99#53 in 177 ms |
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