"도메인명으로 IP 확인"의 두 판 사이의 차이

51번째 줄: 51번째 줄:
</source>
</source>


==map.google.com==
==리눅스==
===dig===
<source lang='dos'>
<source lang='dos'>
C:\Users\jmnote>nslookup map.google.com
[root@jmnote ~]# dig any google.com
서버:    google-public-dns-a.google.com
;; Truncated, retrying in TCP mode.
Address:  8.8.8.8


권한 없는 응답:
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> any google.com
이름:   maps.l.google.com
;; global options: +cmd
Addresses:  173.194.38.66
;; Got answer:
          173.194.38.68
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21523
          173.194.38.67
;; flags: qr rd ra; QUERY: 1, ANSWER: 24, AUTHORITY: 0, ADDITIONAL: 0
          173.194.38.64
 
          173.194.38.65
;; QUESTION SECTION:
          173.194.38.71
;google.com. IN ANY
          173.194.38.69
 
          173.194.38.72
;; ANSWER SECTION:
          173.194.38.76
google.com. 300 IN A 173.194.127.103
          173.194.38.75
google.com. 300 IN A 173.194.127.98
          173.194.38.74
google.com. 300 IN A 173.194.127.99
          173.194.38.73
google.com. 300 IN A 173.194.127.96
          173.194.38.79
google.com. 300 IN A 173.194.127.100
          173.194.38.77
google.com. 300 IN A 173.194.127.110
          173.194.38.70
google.com. 300 IN A 173.194.127.105
          173.194.38.78
google.com. 300 IN A 173.194.127.104
Aliases:  map.google.com
google.com. 300 IN A 173.194.127.101
          maps.google.com
google.com. 300 IN A 173.194.127.97
google.com. 300 IN A 173.194.127.102
google.com. 300 IN AAAA 2404:6800:4005:803::1005
google.com. 21600 IN NS ns2.google.com.
google.com. 21600 IN NS ns4.google.com.
google.com. 600 IN MX 50 alt4.aspmx.l.google.com.
google.com. 21600 IN SOA ns1.google.com. dns-admin.google.com. 2013100300 7200 1800 1209600 300
google.com. 21600 IN NS ns1.google.com.
google.com. 600 IN MX 10 aspmx.l.google.com.
google.com. 3600 IN TXT "v=spf1 include:_spf.google.com ip4:216.73.93.70/31 ip4:216.73.93.72/31 ~all"
google.com. 600 IN MX 30 alt2.aspmx.l.google.com.
google.com. 21600 IN TYPE257 \# 19 0005697373756573796D616E7465632E636F6D
google.com. 600 IN MX 20 alt1.aspmx.l.google.com.
google.com. 600 IN MX 40 alt3.aspmx.l.google.com.
google.com. 21600 IN NS ns3.google.com.
 
;; Query time: 78 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Dec  7 08:48:50 2013
;; MSG SIZE  rcvd: 577
</source>
</source>
:→ 16개의 IP로 분산처리되며, 내 요청을 처리해주는 IP는 173.194.38.66이다.
:→ map.google.com, maps.google.com, maps.l.google.com은 모두 같은 도메인이라고 할 수 있다.
:→ 서브도메인인 map.google.com은 google.com과는 IP 대역이 다르다. 즉 요청을 처리해주는 IP가 다르다.


==같이 보기==
==같이 보기==

2013년 12월 8일 (일) 01:50 판

1 개요

도메인명으로 IP 확인
도메인 이름으로 IP 알아내기
  • 윈도우에서는 nslookup, ping, tracert와 같은 명령어로 간단히 알 수 있다.

2 윈도우

2.1 nslookup

C:\Users\jmnote>nslookup google.com
서버:    google-public-dns-a.google.com
Address:  8.8.8.8

권한 없는 응답:
이름:    google.com
Addresses:  173.194.38.83
          173.194.38.84
          173.194.38.80
          173.194.38.81
          173.194.38.82
→ google.com은 5개의 IP로 분산처리(Load Balancing)되며 내 요청에 응답하는 IP는 173.194.38.83이다.
→ 필자는 DNS를 구글 것으로 사용하며, 구글 DNS의 IP는 8.8.8.8이다.

2.2 ping

C:\Users\jmnote>ping google.com

Ping google.com [173.194.38.83] 32바이트 데이터 사용:
173.194.38.83의 응답: 바이트=32 시간=34ms TTL=50
173.194.38.83의 응답: 바이트=32 시간=32ms TTL=50
173.194.38.83의 응답: 바이트=32 시간=32ms TTL=50
173.194.38.83의 응답: 바이트=32 시간=32ms TTL=50

173.194.38.83에 대한 Ping 통계:
    패킷: 보냄 = 4, 받음 = 4, 손실 = 0 (0% 손실),
왕복 시간(밀리초):
    최소 = 32ms, 최대 = 34ms, 평균 = 32ms

2.3 tracert

C:\Users\jmnote>tracert google.com

최대 30홉 이상의
google.com [173.194.38.83](으)로 가는 경로 추적:

  1     2 ms   154 ms     1 ms  192.168.0.1
...(중략)...

추적을 완료했습니다.

3 리눅스

3.1 dig

[root@jmnote ~]# dig any google.com
;; Truncated, retrying in TCP mode.

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6 <<>> any google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21523
;; flags: qr rd ra; QUERY: 1, ANSWER: 24, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;google.com.			IN	ANY

;; ANSWER SECTION:
google.com.		300	IN	A	173.194.127.103
google.com.		300	IN	A	173.194.127.98
google.com.		300	IN	A	173.194.127.99
google.com.		300	IN	A	173.194.127.96
google.com.		300	IN	A	173.194.127.100
google.com.		300	IN	A	173.194.127.110
google.com.		300	IN	A	173.194.127.105
google.com.		300	IN	A	173.194.127.104
google.com.		300	IN	A	173.194.127.101
google.com.		300	IN	A	173.194.127.97
google.com.		300	IN	A	173.194.127.102
google.com.		300	IN	AAAA	2404:6800:4005:803::1005
google.com.		21600	IN	NS	ns2.google.com.
google.com.		21600	IN	NS	ns4.google.com.
google.com.		600	IN	MX	50 alt4.aspmx.l.google.com.
google.com.		21600	IN	SOA	ns1.google.com. dns-admin.google.com. 2013100300 7200 1800 1209600 300
google.com.		21600	IN	NS	ns1.google.com.
google.com.		600	IN	MX	10 aspmx.l.google.com.
google.com.		3600	IN	TXT	"v=spf1 include:_spf.google.com ip4:216.73.93.70/31 ip4:216.73.93.72/31 ~all"
google.com.		600	IN	MX	30 alt2.aspmx.l.google.com.
google.com.		21600	IN	TYPE257	\# 19 0005697373756573796D616E7465632E636F6D
google.com.		600	IN	MX	20 alt1.aspmx.l.google.com.
google.com.		600	IN	MX	40 alt3.aspmx.l.google.com.
google.com.		21600	IN	NS	ns3.google.com.

;; Query time: 78 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Dec  7 08:48:50 2013
;; MSG SIZE  rcvd: 577

4 같이 보기

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