create a self signed wildcard ssl cert

create-a-self-signed-wildcard-ssl-cert

# Source: https://blog.sleeplessbeastie.eu/2016/11/14/how-to-generate-self-signed-ssl-certificate/

# Single domain
sudo openssl req -subj "/commonName=zwei.test/" -x509 -nodes -days 730 -newkey rsa:2048 -keyout zwei.test.key -out zwei.test.crt

# Wildcard domain
sudo openssl req -subj "/commonName=*.hei.test/" -x509 -nodes -days 730 -newkey rsa:2048 -keyout hei.test.key -out hei.test.crt