1. Remote desktop into the OWA server as the account with which you performed the install. In this example, it is Contoso\sp_install.
2. Open Windows PowerShell by right-clicking on it and choose Run as Administrator.
5. Acknowledge yes, that you are enabling this specific functionality, by pressing Enter when prompted.
6. When completed, you will receive the OWA summary farm confirmation shown in Figure 9.
7. Confirm your farm is operational by using a web browser. To do so, open the following URL: https://owa.contoso.com/hosting/discovery. You should see the Web app Open Platform Interface (WOPI)-discovery XML file shown in Figure 10.
That completes the installation and configuration of the Office Web Apps farm. From here you need to bind that farm to whichever host you choose. In this case, the next section steps you through binding the Office Web Apps farm with the SharePoint 2013 farm using HTTPS.
The preceding steps are almost identical to those outlined in the “Single-Server Installation (HTTP)” configuration section. The critical difference here to note is that this Office Web Apps farm will be using HTTPS communications. By default, whenever you use the New-OfficeWebAppsFarm cmdlet, it defaults to using the HTTPS protocol.