title: Digital Certificate: How to import .cer file in to .truststore file using?
body: <p>Has anyone came across where they have to deal with .truststore file? and knowing how to import .cer into .truststore file? </p>
  
  <p>I am not sure if I have to use Java Keytool or Linux command (such as openssl command).</p>
  
  <p>Thanks</p>