Create and Import SAN Certificate Office Web Apps (OWA)

Log in on Domain Controller. Open MMC, add certificate template. Duplicate Web Server template.

On Request Handing tab, check “Allow private key to be exported”

On the security tab, ensure the account that wants to request the cert has the right to enroll.
And “Authenticades Users” group has the right to enroll.

 

Open Certification Authority.

Select Certificate Template to issue.

On APP Server open MMC, add Snap-in Certificates.

Request New Certificate.

Check previously created Certificate Template (Test1), click More information….

Subject name> Type> choose Common name. In the Value field type name of APP Server, Add.

Alternative name> Type choose DNS. In the Value field type name of OWA Server, Add.
Alternative name> Type choose DNS,  name of Web Application on SharePoint e.g. portal
Last row repeat for all Web Application.

ON General tab type Friendly name.

Note: Later in PowerShell command New-OfficeWebAppsFarm in Certificate name type friendly name.

On Private key tab check “Make private key exportable”. Click OK, Enroll.

Export Certificate to OWA Server

Type new password.

Install Certificate.

When execute PowerShell command New-OfficeWebAppsFarm, certificate automatically import in Owa Web Application on IIS.

On APP Server manuel choose certificate for Web Application on IIS.