"SSL인증서 CN 확인"의 두 판 사이의 차이

2017년 6월 27일 (화) 13:58 기준 최신판

1 개요[ | ]

SSL인증서 CN 확인
SSL인증서 일반명칭 확인
인증서에서 Common Name 확인

로컬 인증서 파일

openssl x509 -noout -subject -in 파일명
openssl x509 -noout -subject -in 파일명 | sed -n '/^subject/s/^.*CN=//p'

원격서버 인증서

echo | openssl s_client -showcerts -connect 서버주소:443 2>/dev/null | sed -n '/^subject/s/^.*CN=//p'
echo | openssl s_client -showcerts -connect 서버주소:443 2>/dev/null | sed -n '/^issuer/s/^.*CN=//p'

2 실행예시 (로컬파일)[ | ]

[root@zetawiki ~]# cat /etc/pki/ca-trust/extracted/pem/email-ca-bundle.pem | head
-----BEGIN CERTIFICATE-----
MIIE2DCCBEGgAwIBAgIEN0rSQzANBgkqhkiG9w0BAQUFADCBwzELMAkGA1UEBhMC
VVMxFDASBgNVBAoTC0VudHJ1c3QubmV0MTswOQYDVQQLEzJ3d3cuZW50cnVzdC5u
... (생략)
W9c3rkIO3aQab3yIVMUWbuF6aC74Or8NpDyJO3inTmODBCEIZ43ygknQW/2xzQ+D
hNQ+IIX3Sj0rnP0qCglN6oH4EZw=
-----END CERTIFICATE-----

[root@zetawiki ~]# openssl x509 -noout -subject -in /etc/pki/ca-trust/extracted/pem/email-ca-bundle.pem
subject= /C=US/O=Entrust.net/OU=www.entrust.net/CPS incorp. by ref. (limits liab.)/OU=(c) 1999 Entrust.net Limited/CN=Entrust.net Secure Server Certification Authority

[root@zetawiki ~]# openssl x509 -noout -subject -in /etc/pki/ca-trust/extracted/pem/email-ca-bundle.pem | sed -n '/^subject/s/^.*CN=//p'
Entrust.net Secure Server Certification Authority

3 실행예시 (원격서버)[ | ]

root@zetawiki:~# echo | openssl s_client -showcerts -connect google.com:443 2>/dev/null | sed -n '/^subject/s/^.*CN=//p'
*.google.com

root@zetawiki:~# echo | openssl s_client -showcerts -connect google.com:443 2>/dev/null | sed -n '/^issuer/s/^.*CN=//p'
Google Internet Authority G2

root@zetawiki:~# echo | openssl s_client -showcerts -connect ko.wikipedia.org:443 2>/dev/null | sed -n '/^subject/s/^.*CN=//p'
*.wikipedia.org

root@zetawiki:~# echo | openssl s_client -showcerts -connect ko.wikipedia.org:443 2>/dev/null | sed -n '/^issuer/s/^.*CN=//p'
GlobalSign Organization Validation CA - SHA256 - G2

4 같이 보기[ | ]

5 참고[ | ]

@@ 1번째 줄: / 1번째 줄: @@
-;인증서에서 CN 확인
+==개요==
+;SSL인증서 CN 확인
+;SSL인증서 일반명칭 확인
 ;인증서에서 Common Name 확인
+* 로컬 인증서 파일
+<source lang='bash'>
+openssl x509 -noout -subject -in 파일명
+openssl x509 -noout -subject -in 파일명 | sed -n '/^subject/s/^.*CN=//p'
+</source>
+* 원격서버 인증서
+<source lang='bash'>
+echo | openssl s_client -showcerts -connect 서버주소:443 2>/dev/null | sed -n '/^subject/s/^.*CN=//p'
+echo | openssl s_client -showcerts -connect 서버주소:443 2>/dev/null | sed -n '/^issuer/s/^.*CN=//p'
+</source>
-==방법==
+==실행예시 (로컬파일)==
 <source lang='console'>
 [root@zetawiki ~]# cat /etc/pki/ca-trust/extracted/pem/email-ca-bundle.pem | head
@@ 18번째 줄: / 30번째 줄: @@
 </source>
 <source lang='console'>
-[root@zetawiki ~]# openssl x509 -noout -subject -in /etc/pki/ca-trust/extracted/pem/email-ca-bundle.pem  | sed -n '/^subject/s/^.*CN=//p'
+[root@zetawiki ~]# openssl x509 -noout -subject -in /etc/pki/ca-trust/extracted/pem/email-ca-bundle.pem | sed -n '/^subject/s/^.*CN=//p'
 Entrust.net Secure Server Certification Authority
+</source>
+==실행예시 (원격서버)==
+<source lang='console'>
+root@zetawiki:~# echo | openssl s_client -showcerts -connect google.com:443 2>/dev/null | sed -n '/^subject/s/^.*CN=//p'
+*.google.com
+</source>
+<source lang='console'>
+root@zetawiki:~# echo | openssl s_client -showcerts -connect google.com:443 2>/dev/null | sed -n '/^issuer/s/^.*CN=//p'
+Google Internet Authority G2
+</source>
+<source lang='console'>
+root@zetawiki:~# echo | openssl s_client -showcerts -connect ko.wikipedia.org:443 2>/dev/null | sed -n '/^subject/s/^.*CN=//p'
+*.wikipedia.org
+</source>
+<source lang='console'>
+root@zetawiki:~# echo | openssl s_client -showcerts -connect ko.wikipedia.org:443 2>/dev/null | sed -n '/^issuer/s/^.*CN=//p'
+GlobalSign Organization Validation CA - SHA256 - G2
 </source>
 ==같이 보기==
+* [[SSL인증서 주체 확인]]
+* [[SSL인증서 만료일 확인]]
+* [[주체대안명칭]]
 * [[x509]]
+* [[리눅스 openssl]]
+==참고==
+* http://unix.stackexchange.com/questions/103461/get-common-name-cn-from-ssl-certificate
+* http://stackoverflow.com/questions/34622899/pdo-with-self-signed-certificates
 [[분류: 인증서]]