Estou trabalhando na configuração de um servidor DNS para uma rede pequena. Instalei o servidor, adicionei a função DNS, configurei dois encaminhadores (fornecidos pelo ISP) e os clientes escolhem o servidor como um servidor DNS. Tudo parece estar funcionando, exceto seu próprio nome de host (malam1).
Isso está em um cliente Windows:
C:\Users\Henk>nslookup malam1
Server: malam1
Address: 192.168.2.1
*** malam1 can't find malam1: Server failed
C:\Users\Henk>nslookup 192.168.2.1
Server: malam1
Address: 192.168.2.1
Name: malam1
Address: 192.168.2.1
Os clientes Linux apresentam o erro:
[henk@lnxpc1 ~]$ nslookup malam1
;; Got SERVFAIL reply from 192.168.2.1, trying next server
;; connection timed out; no servers could be reached
Eu acho que os clientes Windows podem encontrar o servidor usando netbios, mas os clientes Linux não. Eu posso pingar o servidor em seu nome de host em um cliente Windows, mas recebo a mensagem de erro ping: unknown host malam1 em um cliente Linux.
Eu configurei uma Zona de Pesquisa Inversa com o nome 2.168.192.in-addr.arpa. Isso configurou automaticamente um Pointer (PTR) com o nome 192.168.2.1 com dados malam1 . Eu também adicionei um registro Host (A) lá com o nome malam1 e como dados 192.168.2.1 . Nada parece funcionar.
Atualizar
Depois de configurar os servidores Primary DNS Suffix, o servidor malam1 tem essa configuração:
C:\Users\henk>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : malam1
Primary Dns Suffix . . . . . . . : network.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : network.local
Sitecom
Um cliente do Windows repete isso:
C:\Users\Henk>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : laptop
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : network.local
Eu tentei fazer um nslookup para malam1 e malam1.network.local , mas nenhum deles parece resolver para 192.168.2.1:
malam1.network.local
C:\Users\Henk>nslookup
Default Server: malam1
Address: 192.168.2.1
> set debug
> malam1.network.local
Server: malam1
Address: 192.168.2.1
------------
Got answer:
HEADER:
opcode = QUERY, id = 4, rcode = NXDOMAIN
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
malam1.network.local.network.local, type = A, class = IN
------------
------------
Got answer:
HEADER:
opcode = QUERY, id = 5, rcode = NXDOMAIN
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
malam1.network.local.network.local, type = AAAA, class = IN
------------
------------
Got answer:
HEADER:
opcode = QUERY, id = 6, rcode = NXDOMAIN
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 1, additional = 0
QUESTIONS:
malam1.network.local, type = A, class = IN
AUTHORITY RECORDS:
-> (root)
ttl = 900 (15 mins)
primary name server = a.root-servers.net
responsible mail addr = nstld.verisign-grs.com
serial = 2013093001
refresh = 1800 (30 mins)
retry = 900 (15 mins)
expire = 604800 (7 days)
default TTL = 86400 (1 day)
------------
------------
Got answer:
HEADER:
opcode = QUERY, id = 7, rcode = NXDOMAIN
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 1, additional = 0
QUESTIONS:
malam1.network.local, type = AAAA, class = IN
AUTHORITY RECORDS:
-> (root)
ttl = 900 (15 mins)
primary name server = a.root-servers.net
responsible mail addr = nstld.verisign-grs.com
serial = 2013093001
refresh = 1800 (30 mins)
retry = 900 (15 mins)
expire = 604800 (7 days)
default TTL = 86400 (1 day)
------------
*** malam1 can't find malam1.network.local: Non-existent domain
malam1
C:\Users\Henk>nslookup
Default Server: malam1
Address: 192.168.2.1
> set debug
> malam1
Server: malam1
Address: 192.168.2.1
------------
Got answer:
HEADER:
opcode = QUERY, id = 2, rcode = NXDOMAIN
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 1, additional = 0
QUESTIONS:
malam1.network.local, type = A, class = IN
AUTHORITY RECORDS:
-> (root)
ttl = 610 (10 mins 10 secs)
primary name server = a.root-servers.net
responsible mail addr = nstld.verisign-grs.com
serial = 2013093001
refresh = 1800 (30 mins)
retry = 900 (15 mins)
expire = 604800 (7 days)
default TTL = 86400 (1 day)
------------
------------
Got answer:
HEADER:
opcode = QUERY, id = 3, rcode = NXDOMAIN
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 1, additional = 0
QUESTIONS:
malam1.network.local, type = AAAA, class = IN
AUTHORITY RECORDS:
-> (root)
ttl = 610 (10 mins 10 secs)
primary name server = a.root-servers.net
responsible mail addr = nstld.verisign-grs.com
serial = 2013093001
refresh = 1800 (30 mins)
retry = 900 (15 mins)
expire = 604800 (7 days)
default TTL = 86400 (1 day)
------------
*** malam1 can't find malam1: Non-existent domain
>
Por que o comando nslookup ainda falha?