Create self-signed certificate

selfSignedCert.sh

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"

openssl req -x509 -newkey rsa:4096 -sha256 -days 1825 -nodes \
  -keyout example.key -out example.crt -extensions san -config \
  <(echo "[req]";
    echo distinguished_name=req;
    echo "[san]";
    echo subjectAltName=DNS:example.com,DNS:www.example.net,IP:10.0.0.1
    ) \
  -subj "/CN=example.com"