Plesk Server Administrator 2.5

Important Note:

Effective 1 January 2011, we will no longer support any Certificate Signing Request [CSR] generated with a 1024 bit key. This is because NIST, PKIX, WebTrust and other respective security standards no longer consider the 1024 bit key size as secure. Read more >


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 web form in the enrollment process.

Important Notes on Certificates

Generate a Self-signed Certificate or Certificate Signing Request
Access the domain management function by clicking on the Domains button at the top of the PSA interface. The Domain List page appears.

    1. Click the domain name that you want to work with. The Domain Administration page appears.

    2. If you have established an IP based hosting account with SSL support, the Certificate button will be enabled.

    3. Click the Certificate button. The SSL certificate setup page appears.

    4. The Certificate Information: section lists information needed for a certificate signing request, or a self-signed certificate. You must fill out these fields before generating your CSR or self-signed certificate.

    5. 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.

    6. To enter the information into the provided text input fields (State or Province, Locality, Organization Name and Organization Unit Name (optional)) click in the text boxes and enter the appropriate name.

    7. To enter the Domain Name for the certificate click in the text box next to Domain Name: and enter the appropriate domain.

    8. The domain name is a required field. This will be the only domain name that can be used to access the Control Panel without receiving a certificate warning in the browser. The expected format is or

    9. Click on the Request button.

    10. Selecting Request results in the sending of a certificate-signing request (CSR) to the email address you provided in the certificate fields discussed above. When a CSR (certificate signing request) is generated there are two different text sections, the RSA Private Key and the Certificate Request. Do not lose your RSA private key. You will need this during the certificate installation process. Losing it is likely to result in the need to purchase another certificate.

    11. Copy and paste the Certificate Request emailed to you into the InstantSSL web form where it requests a CSR (Certificate Signing Request).

    12. When you are satisfied that the SSL certificate has been generated or the SSL certificate