Generate a certificate signing request
1. Generate the RSA key
mkdir ~/domain.com.ssl/
cd ~/domain.com.ssl/
openssl genrsa -out ~/domain.com.ssl/domain.com.key 2048
2. Create a CSR
openssl req -new -sha256 -key ~/domain.com.ssl/domain.com.key -out ~/domain.com.ssl/domain.com.csr
