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dig

O utilitário de texto dig extrai informações de DNS.

The most flexible and widely used tool for DNS lookups. Highly recommended for troubleshooting.

Exemplo de uso:

Terminal window
dig navinet.com.br -t ns
Terminal window
; <<>> DiG 9.18.24-0ubuntu5-Ubuntu <<>> navinet.com.br -t ns
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14040
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1


;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;navinet.com.br.      IN  NS


;; ANSWER SECTION:
navinet.com.br.    3600  IN  NS  ns2.navinet.com.br.
navinet.com.br.    3600  IN  NS  ns1.navinet.com.br.


;; Query time: 994 msec
;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
;; WHEN: Thu Nov 20 22:41:09 -03 2025
;; MSG SIZE  rcvd: 79

Para localização de servidores de e-mail:

Terminal window
dig navinet.com.br -t ns
Terminal window
; <<>> DiG 9.18.24-0ubuntu5-Ubuntu <<>> navinet.com.br -t mx
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37526
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1


;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;navinet.com.br.      IN  MX


;; ANSWER SECTION:
navinet.com.br.    3600  IN  MX  5 ns16.navinet.com.br.


;; Query time: 261 msec
;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
;; WHEN: Thu Nov 20 22:41:45 -03 2025
;; MSG SIZE  rcvd: 64

Também permite que seja verificado é possível realizar transferência de zona de domínio.

Another Example Usage

Section titled “Another Example Usage”

Mail Exchange records

Section titled “Mail Exchange records”
Terminal window
dig -t MX wikipedia.org

Result:

Terminal window
    ; <<>> DiG 9.18.24-0ubuntu5-Ubuntu <<>> -t MX wikipedia.org
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27712
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1


    ;; OPT PSEUDOSECTION:
    ; EDNS: version: 0, flags:; udp: 65494
    ;; QUESTION SECTION:
    ;wikipedia.org.      IN  MX


    ;; ANSWER SECTION:
    wikipedia.org.    300  IN  MX  10 mx-in2001.wikimedia.org.
    wikipedia.org.    300  IN  MX  10 mx-in1001.wikimedia.org.


    ;; Query time: 301 msec
    ;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
    ;; WHEN: Wed Feb 25 13:23:35 -03 2026
    ;; MSG SIZE  rcvd: 104

IPv6 records

Section titled “IPv6 records”
Terminal window
dig AAAA wikipedia.org

Result:

Terminal window
    ; <<>> DiG 9.18.24-0ubuntu5-Ubuntu <<>> AAAA wikipedia.org
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32938
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1


    ;; OPT PSEUDOSECTION:
    ; EDNS: version: 0, flags:; udp: 65494
    ;; QUESTION SECTION:
    ;wikipedia.org.      IN  AAAA


    ;; ANSWER SECTION:
    wikipedia.org.    135  IN  AAAA  2a02:ec80:700:ed1a::1


    ;; Query time: 35 msec
    ;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
    ;; WHEN: Wed Feb 25 13:24:38 -03 2026
    ;; MSG SIZE  rcvd: 70