웹서버 SSL 인증서 확인

개요

웹사이트 SSL 인증서 추출

openssl s_client -connect 주소 </dev/null 2>/dev/null | openssl x509 -inform pem -text | sed -n -e '/-.BEGIN/,/-.END/ p'

$ openssl s_client -connect wikipedia.org:443 </dev/null 2>/dev/null | openssl x509 -inform pem -text | sed -n -e '/-.BEGIN/,/-.END/ p'
-----BEGIN CERTIFICATE-----
MIIISzCCB9GgAwIBAgIQB0GeOVg6THbPHqFDR/pfOjAKBggqhkjOPQQDAzBWMQsw
CQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMTAwLgYDVQQDEydEaWdp
Q2VydCBUTFMgSHlicmlkIEVDQyBTSEEzODQgMjAyMCBDQTEwHhcNMjMxMDE4MDAw
...
zj0EAwMDaAAwZQIwKuOOLjmwGgtjG6SASF4W2e8KtQZANRsYXMXJDGwBCi9fM7Qy
S9dvlFLwrcDg1gxlAjEA5XwJikbpk/qyQerzeUspuZKhqh1KPuj2uBdp8vicuBxu
TJUd1W+d3LmikOUgGzil
-----END CERTIFICATE-----