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Solution ID : SO22265

Last Modified : 05/31/2019

Managed PKI for SSL - Installation Instructions for cPanel 11


This document provides installation instructions for cPanel 11. If you are unable to use these instructions for cPanel, DigiCert recommends that you contact the server vendor or the organization which supports cPanel.

Step 1: Download the Intermediate CA certificate

  1. Download the Intermediate CA certificate from this link.
  2. Click on Managed PKI for SSL tab, click on the appropriate link for your SSL certificate.
    For example, if you are installing a Premium SSL certificate, click the Premium Intermediate CA Certificate link.
  3. Select the appropriate Intermediate CA certificate for your SSL certificate type.
    NOTE: To check which certificate type you have purchased, follow the steps from this link.
  4. Copy the Intermediate CA certificate and paste it on a Notepad.
  5. Make sure there are 5 dashes to either side of the BEGIN CERTIFICATE and END CERTIFICATE and that no white spaces, extra line breaks or additional characters have been inadvertently added.
  6. Save the file with extension intermediateca.txt

Step 2: Download your SSL Certificate

  1. Once your Managed PKI for SSL administrator has approved your certificate request, you will receive an email with
    a certificate download link, also attached (cert.cer), as well as in the body of the email itself.
  2. If copying the certificate imbedded in the body of the email, paste it into a text file using Vi or Notepad.
    NOTE: Do not use Microsoft Word or other word processing programs that may add characters. Confirm that there are no extra lines or spaces in the file.

    The text file should look like:

              [encoded data]
    -----END CERTIFICATE-----

    NOTE: Click here to download the certificate from your Managed PKI for SSL subscriber services page.
    Please select X.509 as a certificate format and copy only the End Entity Certificate.
  3. Save the certificate as public.txt


Step 3: Install your SSL Certificate

  1. Login to cPanel.
  2. Under Security click on the SSL/TLS Manager icon.

  3. Click the link Generate, view, upload, or delete SSL certificates.

  4. Paste the CSR you supplied to the Certificate Authority with Certificate Signing Request (CSR) section above.
  5. When the page loads, click the Browse button and locate the public.txt  (SSL certificate) or if you have highlighted
    and copied the contents of your public.txt file, paste it in the Upload a New Certificate text box.
  6. Click on the Upload button.
Step 4: Activate SSL on the Web Site in WHS (HTTPS) 
  1. Click the link Setup a SSL certificate to work with your site in WHS.

  2. Under Install/Update a SSL Host, select the domain from the Domain drop down list.
    The system will attempt to Fetch the SSL certificate and private key.

  3. In the box labeled CA Bundle, paste the contents of the Intermediate CA file downloaded in Step 1.
  4. Click on Install Certificate.
  5. The certificate is now added to the server and assigned to the domain.
  6. Verify the installation of the certificate chain using our DigiCert Checker.


          For additional information please refer to Cpanel 11 Documentation.