Important: This step must be completed first! Login to where your domain is managed and update the name servers to match your primary domain. If you're unsure of which name servers to use, please open a support ticket. Once your name servers for your alias domain are updated, you can proceed to step 2.
Login to cPanel either through My NodeSpace or directly.
Navigate to Domains and then click on Aliases
Type in your alias domain and click Add Domain
Your domain will be added to the domain list and now when visitors type in your alias address, they will see your existing site.