Please follow these steps to create the CSR and Private Key.
1. Log in to the Plesk account.
2. Go to Websites & Domains and click on SSL/TLS Certificates.
3. Click on Advanced Settings.
4. Proceed by clicking on Add SSL/TLS Certificate.
5. Specify the certificate parameters:
- Certificate name: This will help you identify this certificate in the repository.
- Bits: Choose the encryption level of your SSL certificate. In Plesk Onyx, 2048, 3072 and 4096 bits are available.
- Country, State or province, location (city), organization name (company): The values you enter should not exceed the length of 64 symbols.
- Domain name:The domain name for which you want to purchase an SSL certificate. This should be a fully qualified domain name. Example: example.com.
- Email: The website administrator's email address
6. Plesk will generate your private key and certificate signing request (CSR) and add them to your certificate repository (Domains > SSL/TLS Certificates).