A CSR is a file containing your certificate
application information, including your Public Key. Generate
your CSR and then copy and paste the CSR file into the webform
in the enrollment process.
Important Notes on Certificates In order
to use SSL certificates for a given domain, the domain MUST
be set-up for IP-Based hosting. If the given domain has
the www prefix enabled, you must set-up your CSR with the
www prefix included. If you do not, you will receive a warning
message when trying to access the domain with the www prefix.
All certificates are located in the ../vhosts/'domain
name'/cert/httpsd.pem file. Where this directory reads "domain
name", you must enter the domain name for which the
certificate was created. Access the domain management function
by clicking on the Domains button at the top of the PSA
interface. The Domain List page appears.
Click the domain name that you want
to secure with SSL. The Domain Administration page then
appears. If you have an IP based hosting account with SSL
support, the Certificate button will be enabled. If you
have a name based hosting account the Certificate button
will be greyed out. You must have an IP based hosting account
to continue. Click the Certificate button. The SSL certificate
setup page appears. The Certificate Information: section
lists asks for a number of fields to be completed to generate
your CSR.

The Bits selection allows you to
choose the level of encryption of your SSL certificate.
Select the appropriate number from the drop down box next
to Bits. Enter your details into the State or Province,
Locality, Organization Name and Organization Unit Name fields.
Enter your domain name into the Domain Name: field.
Click on the Request button.
Plesk will now email your CSR to the email address provided
when you signed up. You will see that the email contains
two sections - the RSA Private Key and the Certificate Signing
Request. Do not lose your RSA Private Key, you will need
this later.
Click Up Level to return to the Domain Administration page.