Re: Vérifier la validité d'un certificat let's encrypt
Salut la liste,
> Je ne sais pas comment faire pour vérifier le certificat en ligne de commande. Qu'entendait par la mon interlocuteur ?
$ openssl s_client -connect www.visionduweb.fr:443 -showcerts
CONNECTED(00000003)
depth=1 /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3
verify error:num=20:unable to get local issuer certificate
verify return:0
---
Certificate chain
0 s:/CN=green-nrj.com
i:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
1 s:/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3
i:/O=Digital Signature Trust Co./CN=DST Root CA X3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
---
Server certificate
subject=/CN=green-nrj.com
issuer=/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3
---
No client certificate CA names sent
---
SSL handshake has read 4690 bytes and written 712 bytes
---
New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA
Server public key is 4096 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
Protocol : TLSv1
Cipher : DHE-RSA-AES256-SHA
Session-ID: 537EE5EEBB6229A1D067B5D8FDF1BCD8D0AF95794D423DA71D89FAFDB7AE66E6
Session-ID-ctx:
Master-Key: 34F7AC2BCA2C7EB74554D5D6F5C4107DD5F908969056B066D4B0174926BEED093C73734E2C1088CEEBBD8A6C3E8D4C49
Key-Arg : None
Start Time: 1546191685
Timeout : 300 (sec)
Verify return code: 0 (ok)
---
Enjoy!
Ph. Gras
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