You can use your extra domain and direct it to your main site's root. If example.com is your principal domain and example.net is pointed at it, content of example.com will be shown in the browser.
1. Log in to your DirectAdmin Account.
2. In the Account Manager section, click on Domain Pointers or type Pointers in the navigation filter box, and the option will appear. Click on it.
3. Click on Create Domain Pointer. You will find it on the top right.
4. Under Source Domain, please enter your domain pointer name.
5. Unmark Create as an Alias and click on Create.
The domain pointer will not work if it points to the same nameservers as your primary nameservers.
