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* For sni you can add '''-servername xyz.test.com''' |
OpenSSL Linux commandline ssl tool
Links security/ssl , easy-rsa , LetsEncrypt
Verify a webserver certificate
- openssl s_client -showcerts -connect my.test.com:443
- Output should end on "Verify return code: 0 (ok)"
- As of 2017 the TLS Protocol should be TLSv1.2 at least.
For sni you can add -servername xyz.test.com