CODE EXAMPLE FOR SHELL

generate crt and key openssl

openssl req -x509 -newkey rsa:4096 -sha256 -days 3650 -nodes 
  -keyout example.key -out example.crt -subj "/CN=example.com" 
  -addext "subjectAltName=DNS:example.com,DNS:www.example.net,IP:10.0.0.1"