1. Login to Plesk Administrator
2. Click on Tools & Utilities
3. Click on IP Addresses
4. Click on the IP Address your wanting to assign
5. To make this a Private IP (Exclusive) make sure the Exclusive radio button is chosen
6. For SSL Certificate Leave to default if you haven’t already installed an SSL
7. For Default Site: using the pull down menu choose the domain you want to have to be the default for this IP
8. Click on OK