DNS

[caio abreu ferreira <idic@terra.com.br>]

Lista

Estou seguindo alguns tutoriais, principalmente os do howto forge, para configurar um 
servidor de dns que ira responder a um domínio local. A configuração desse servidor de dns é 
para estudo. Para fazer a configuração fiz o seguinte até agora.

##### Dados técnicos
- dns primário - dns1.particula.local - 192.168.79.5
- dns secundário - dns2.particula.local - 192.168.79.6
- GNU Linux Debian Stable

##### cat /etc/bind/named.conf.local
zone "particula.local" {
        type master;
        file "/etc/bind/db.particula.local";
        allow-transfer { 192.168.79.6; };
        notify yes;
};

zone "79.168.192.in-addr.arp" {
        type master;
        file "/etc/bind/db.79.168.192.in-addr.arpa";
};

##### cat /etc/bind/db.particula.local
; Start of Authority (SOA) record
$TTL   900
@ IN SOA ns1.particula.local. root.particula.local. (
                        3600;   serial
                        3600;   refresh, seconds
                        3600;   retry, seconds
                        3600;   expire, seconds
                        900 );  minimum, seconds

; Name Server (NS) records.
                        IN NS ns1.particula.local.
                        IN NS ns2.particula.local.

; Mail Exchange (MX) records.
                        IN MX 10 server.particula.local.

; Address (A) records. (real-names of machines)
                        IN A 192.168.79.5
ns1                     IN A 192.168.79.5
ns2                     IN A 192.168.79.6
server                  IN A 192.168.79.7

; Aliases in Canonical Name (CNAME) records...
www                     IN CNAME server
ftp                     IN CNAME server
proxy                   IN CNAME server

##### cat /etc/bind/db.79.168.192.in-addr.arpa
; Start of Authority (SOA) record
$TTL   900
@ IN SOA ns1.particula.local. root.particula.local. (
                        3600;   serial
                        3600;   refresh, seconds
                        3600;   retry, seconds
                        3600;   expire, seconds
                        900 );  minimum, seconds

; Name Server (NS) records.
                        IN NS ns1.particula.local.
                        IN NS ns2.particula.local.

; Addresses point to canonical names (PTR) for reverse lookups
5                       IN PTR ns1.particula.local.
6                       IN PTR ns2.particula.local.

O comando "dig particula.local" esta funcionando corretamente, vide abaixo.

##### dig particula.local
; <<>> DiG 9.6-ESV-R1 <<>> particula.local
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37138
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;particula.local.               IN      A

;; ANSWER SECTION:
particula.local.        900     IN      A       192.168.79.5

;; AUTHORITY SECTION:
particula.local.        900     IN      NS      ns2.particula.local.
particula.local.        900     IN      NS      ns1.particula.local.

;; ADDITIONAL SECTION:
ns1.particula.local.    900     IN      A       192.168.79.5
ns2.particula.local.    900     IN      A       192.168.79.6

;; Query time: 1 msec
;; SERVER: 192.168.79.5#53(192.168.79.5)
;; WHEN: Thu Sep 30 09:48:10 2010
;; MSG SIZE  rcvd: 117

O problema esta sendo em relação ao DNS reverso, comando "dig -x 192.168.79.5"

##### dig -x 192.168.79.5

; <<>> DiG 9.6-ESV-R1 <<>> -x 192.168.79.5
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4396
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;5.79.168.192.in-addr.arpa.     IN      PTR

;; AUTHORITY SECTION:
168.192.in-addr.arpa.   9501    IN      SOA     prisoner.iana.org. hostmaster.root-
servers.org. 2002040800 1800 900 604800 604800

;; Query time: 17 msec
;; SERVER: 192.168.79.6#53(192.168.79.6)
;; WHEN: Thu Sep 30 09:49:15 2010
;; MSG SIZE  rcvd: 120

Alguém por acaso saberia me dizer o que eu posso estar fazendo de errado?

Obrigado.