useful openssl commands

 openssl s_client -connect 100.100.100.20:443

echo "" | openssl s_client -connect website.ie:443 -showcerts

echo "" | openssl s_client -connect website.ie:443 -showcerts | openssl x509 -noout -text -fingerprint

echo "" | openssl s_client -connect AD01.domain.local:636 -showcerts

echo "" | openssl s_client -connect AD01.domain.local:389 -starttls ldap -showcerts

openssl pkcs12 -nokeys -nocerts -info -in Example1.pfx

openssl.exe s_client -connect 100.100.50.8:443 -servername fs1.domain.com -showcerts

Get info

openssl pkcs12 -nokeys -nocert -info

Export key

openssl pkcs12 -in bundle.pfx  -out key.enc.key

openssl rsa -in key.enc.key -out key.key

Export private key from PFX

opennssl pkcs12 -in bundle.pfx -nodes -nocerts -out key.enc.key