Script sans CA
openssl req -new -newkey rsa:4096 -days 365 -nodes -x509 \
-subj "/C=GB/ST=Paris/L=Paris/O=Capsule CORP/OU=Lab 01/CN=capsule.corp" \
-keyout cert.key -out cert.crt
openssl req -new -newkey rsa:4096 -days 365 -nodes -x509 \
-subj "/C=GB/ST=Paris/L=Paris/O=Capsule CORP/OU=Lab 01/CN=capsule.corp" \
-keyout cert.key -out cert.crt