Generate self-signed certificate and key in one line
If you need a quick self-signed certificate, you can generate the key/certificate pair, then sign it, all with one openssl line:
openssl req -new -newkey rsa:1024 -days 365 -nodes -x509 -keyout server.key -out server.crt
[...] you’ll need to make a new self-signed SSL certificate (if you don’t have a key and certificate available [...]