====== Create Certificate Signing Request (CSR) using OpenSSL ======

Create private key:
<code bash>
openssl genrsa -out server.key 4096
</code>
Configuration File: //server.conf//
<code ini>
distinguished_name = req_distinguished_name
req_extensions = v3_req
prompt = no

[req_distinguished_name]
C = COUNTRY
L = LOCATION
O = ORGANIZATION
OU = ORGANIZATION UNIT
CN = *.lab.mueller.world

[v3_req]
keyUsage = keyEncipherment, dataEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alt_names

[alt_names]
DNS.1 = *.lab.mueller.world
</code>

Create Certificate Signing Request
<code bash>
openssl req -new -key server.key -config server.conf -out server.csr
</code>