cheat sheets.

View a certificate:
  openssl x509 -in mycert.crt -text

Remove passphrase from a key:
  openssl rsa -in server.key -out server-without-passphrase.key

Generate a self-signed cert/key:
  openssl req -new -newkey rsa:1024 -days 365 -nodes -x509 -keyout server.pem
  -out server.pem