Se você estiver executando o nslookup em seu próprio servidor DNS (ou seja, não no servidor de nomes autoritativo do domínio), uma resposta não autoritativa é o que eu esperaria. Seu servidor DNS não pode responder com autoridade para um domínio para o qual não é autoritativo.
@joeqwerty Normally NSLOOKUP will give both the authoritative answer and then list the server where the authoritative answer can be obtained. That is not happening. The authoritative information is blank
Eu vejo 0 respostas autoritativas nesta consulta.
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\Administrator
Default Server: MyDnsServer
Address: x.x.x.x
> set debug
> yahoo.com.
Server: myDnsServer
Address: x.x.x.x
------------
Got answer:
HEADER:
opcode = QUERY, id = 4, rcode = NOERROR
header flags: response, want recursion, recursion avail.
questions = 1, answers = 3, authority records = 0, additional = 0
QUESTIONS:
yahoo.com, type = A, class = IN
ANSWERS:
-> yahoo.com
internet address = 98.138.253.109
ttl = 1173 (19 mins 33 secs)
-> yahoo.com
internet address = 206.190.36.45
ttl = 1173 (19 mins 33 secs)
-> yahoo.com
internet address = 98.139.183.24
ttl = 1173 (19 mins 33 secs)
------------
Non-authoritative answer:
------------
Got answer:
HEADER:
opcode = QUERY, id = 5, rcode = NOERROR
header flags: response, want recursion, recursion avail.
questions = 1, answers = 3, authority records = 0, additional = 0
QUESTIONS:
yahoo.com, type = AAAA, class = IN
ANSWERS:
-> yahoo.com
AAAA IPv6 address = 2001:4998:58:c02::a9
ttl = 133 (2 mins 13 secs)
-> yahoo.com
AAAA IPv6 address = 2001:4998:44:204::a7
ttl = 133 (2 mins 13 secs)
-> yahoo.com
AAAA IPv6 address = 2001:4998:c:a06::2:4008
ttl = 133 (2 mins 13 secs)
------------
Name: yahoo.com
Addresses: 2001:4998:58:c02::a9
2001:4998:44:204::a7
2001:4998:c:a06::2:4008
98.138.253.109
206.190.36.45
98.139.183.24
>
Você pode postar sua consulta nslookup?