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| openssl [2020/10/29 14:10] – created tmaier | openssl [2021/03/12 12:53] (current) – tmaier |
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| ===== CRLs ===== | ===== CRLs ===== |
| [[https://langui.sh/2010/01/10/parsing-a-crl-with-openssl/|Parsing a CRL]]: ''openssl crl -inform DER -text -noout -in mycrl.crl'' | [[https://langui.sh/2010/01/10/parsing-a-crl-with-openssl/|Parsing a CRL]]: ''openssl crl -inform DER -text -noout -in mycrl.crl'' |
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| | ===== PKCS12 ===== |
| | Reading a PKCS12 file: ''openssl pkcs12 -info -in some_file.p12'' |
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| | ===== X.509 ===== |
| | * Parsing a PEM file: ''openssl x509 -text -in some_file -inform pem'' |
| | * Download and parse certificate: ''echo | openssl s_client -starttls=smtp -connect some_domain.tld:25 2>/dev/null | openssl x509 -text'' |
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| | ===== Connect with TLS ===== |
| | * Connect to SMTP: ''openssl s_client -connect some_domain.tld:587 -starttls smtp'' |
| | * Download certificate (HTTPS w/o SNI): ''openssl s_client -showcerts -connect some_domain.tld:443 </dev/null'' |
| | * Download certificate (HTTPS w/ SNI): ''openssl s_client -showcerts -servername some_domain.tld -connect some_domain.tld:443 </dev/null'' |
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