1. First, to login into DirectAdmin control panel visit,
https://your-domain.com:2222 or https://IP-address:2222 or https://server-hostname:2222.
2. Navigate to Account Manager → Domain Setup. Or in the dashboard, you will see Domain Setup → Add new
4. Enter the required information,
Domain: Enter the domain name (Do not enter the domain starting with www/HTTP/https).
Bandwidth: Specify the bandwidth limit for the addon domain, or else you can check the option Same as the Main account to set the bandwidth limit the same as the primary account.
Disk Usage: Specify the disk space limit for the addon domain, or else you can check the option Same as the Main account to set the disk space limit the same as the primary account.
Options: In options, you have Secure SSL, CGI access, PHP access. If you want to enable any of the options, then check it.
5. Congratulations! A new addon domain has been successfully added in the DirectAdmin control panel.
