리눅스 dig

1 개요

dig

/usr/bin/dig

• 리눅스용 DNS 조회 도구

2 현재 DNS로 조회

명령어

Bash

Copy

dig 도메인

실행예시

Copy

[root@jmnote ~]# dig gmail.com

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5 <<>> gmail.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26173
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;gmail.com.			IN	A

;; ANSWER SECTION:
gmail.com.		271	IN	A	74.125.203.19
gmail.com.		271	IN	A	74.125.203.18
gmail.com.		271	IN	A	74.125.203.83
gmail.com.		271	IN	A	74.125.203.17

;; Query time: 209 msec
;; SERVER: 172.27.0.1#53(172.27.0.1)
;; WHEN: Tue Apr  8 22:43:04 2014
;; MSG SIZE  rcvd: 91

3 특정 DNS로 조회

명령어

Bash

Copy

dig @DNS주소 도메인

실행예시

Copy

[root@jmnote ~]# dig @8.8.8.8 gmail.com

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 <<>> @8.8.8.8 gmail.com
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1500
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;gmail.com.			IN	A

;; ANSWER SECTION:
gmail.com.		299	IN	A	173.194.126.150
gmail.com.		299	IN	A	173.194.126.149

;; Query time: 75 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Tue Apr  8 22:42:02 2014
;; MSG SIZE  rcvd: 59

4 같이 보기

• /usr/bin/host
• 도메인명으로 IP 확인
• DNS

5 참고 자료

• https://en.wikipedia.org/wiki/Dig_(command)