How to create a self-signed certificate on Red Hat Enterprise Linux with OpenSSL?

Solution Verified - Updated -

Issue

  • How to create a self-signed certificate to use with different services in Red Hat Enterprise Linux like httpd, postfix, etc ?
  • How to create a self-signed certificate on Red Hat Enterprise Linux with OpenSSL ?

Environment

  • Red Hat Enterprise Linux (All Versions)
  • OpenSSL

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