This guide is intended for users who have already received an SSL certificate from a certificate authority and want to install it on their website using ispmanager.
You will need the following:
An archive containing the SSL certificate and the intermediate certificate chain. This archive is typically sent to the confirmation email address. The certificate can also be downloaded from your client area.
The private key. It is issued together with the certificate and can be downloaded from your client area.
Log in to ISPmanager and go to the SSL Certificates section. Click Add Certificate. You will be offered two options: an existing certificate or a self‑signed one. Select Existing.
- The SSL certificate creation window will open. In the User name list, select the user who owns the website where the certificate will be installed.
The SSL certificate will only be available to administrators and to the user selected in this step.
Next, paste the contents of the .crt file from the archive into the SSL certificate field.
In the SSL certificate key field, paste the contents of the .key file.
- In the SSL certificate chain field, copy and paste the contents of the certificate chain file in PEM format. Click Create to add the certificate.
- Connect the added SSL certificate to your website. Go to the Sites section and click the required domain to open its settings. Select the added certificate in the SSL certificate field. In the Advanced section, enable the HSTS option.
After that, verify that the certificate has been installed correctly.
If there are several websites on the server and the certificate is installed for only one of them, an issue may occur. Websites without certificates may also start opening via HTTPS but will redirect to the domain that has the certificate installed. The browser will display a warning that the certificate does not match the domain name. To resolve this issue, install a certificate for each domain or assign the website with the certificate to a separate IP address.