Unable to install separate certificates for several domains under one subscription

Created:

2017-02-10 10:55:27 UTC

Modified:

2017-08-08 13:28:11 UTC

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Unable to install separate certificates for several domains under one subscription

Applicable to:

  • Plesk for Windows

Symptoms

  1. Subscription has several domains. When setting the certificate to one of the domains, other domains get the same certificate.

  2. The following notification is shown in Hosting Settings of the domain:

    The certificate change will also affect other sites hosted on the same dedicated IP address.
    

  3. Operating System is Windows Server 2008.

Cause

SNI is not supported on Windows Server 2008.

Resolution

SNI (Server Name Indication) allows to run any number of SSL/TLS sites with independent certificates on a single IPv4 address.

On Windows SNI is supported since Windows Server 2012.

To use SNI, migrate to the server with appropriate OS.

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