You have multiple domain names for your web site, for example quadrahosting.com, quadrahosting.com.au, and quadrawebhosting.com. You would like to point all these domain names to the same web site.
Say for example, you already set up quadrahosting.com.au on your account and the web site is live on this domain name.
Method 1: add quadrahosting.com and quadrawebhosting.com as domain aliases for quadrahosting.com.au.
This method makes the browser address stay as quadrahosting.com when you browse to quadrahosting.com, and equally, the browser address will remain as quadrawebhosting.com when you typed quadrawebhosting.com in the address bar.
Method 2: add quadrahosting.com and quadrawebhosting.com as separate, additional domains. Then click on Web Options for the corresponding domain (i.e. quadrahosting.com and quadrawebhosting.com) and set up a redirection to quadrahosting.com.au
This method will cause the browser to change its address to quadrahosting.com.au when you typed in quadrahosting.com or quadrawebhosting.com