Hey, Aliases are basically separate domain names which can access and display the same webpages as your default one and can act as another domain liked to the same set of data. They help when you have various names or would like to use another name for the same website. Obvously, it is not necessary to use them! It is only when you require another domain to work side-by-side with the default one. The domain registrar you use will give you a few options of how you would like to use this domain name. You can select to use DNS/Point Domain and fill up in the provided spaces insert the two nameservers of Heliohost, ns1.heliohost.org and ns2.heliohost.org . Then in your cPanel, select Aliases(in paper lantern theme) and enter your domain name. There you go. Within 15 minutes-24 hours based on your domain registrar, your domain will successfully point to your heliohost server.