Commands to Check SSL cert’s validity and other details
1. Get complete available details of an SSL certificate
openssl x509 -text -in ssl.cert
2. Who issued the certificate?
openssl x509 -noout -in ssl.cert -issuer
3. To whom the certificate was issued?
openssl x509 -noout -in ssl.cert -subject
4. To check the expiry date of SSL certificate
openssl x509 -noout -in ssl.cert -dates
5. To get SSL cert’s hash value
openssl x509 -noout -in ssl.cert -hash
6. To get SSL cert’s MD5 fingerprint
openssl x509 -noout -in ssl.cert -fingerprint
7)To check CSR
openssl req -noout -text -in new.csr
8)To check key
openssl rsa -noout -text -in new.key
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