Easy and clear guide to generate a Certificate Signing Request (CSR) using Apache OpenSSL.

1. How to Generate a CSR Using Apache OpenSSL
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2. How to Generate a CSR Using Apache OpenSSL
Step 1: Using Putty, connect to Apache Server SSH and login as root. Type the command below
when prompted:
openssl req -new -newkey rsa:2048 -nodes -keyout yourdomainn.key -out yourdomain.csr

3.  The command should create two new files: a private key and a CSR. Keep a copy of your private key
secure and then complete the CSR.
 Note: The private key is thusly named because it needs to be kept safely. A compromised private
key means a compromised SSL certificate.

4. You are now going to be asked to give some
specific information:
 Country Name (2 letter code) [XX]:
 State or Province Name (full name) []:
 Locality Name (city) [Default City]:
 Organization Name (company) [Default Company Ltd]:
 Organizational Unit Name (department, division) []:
 Common Name (your name or your server’s hostname) []:
 Email Address []:

5. Congratulations!
 After filling out the required fields, your CSR will be saved and is now ready for the CA.
 More details; https://www.rapidsslonline.com/blog/generate-csr-apache-openssl/