I followed this guide to browse and check my website before pointing domain DNS https://www.virtualmin.com/documentation/web/faq#toc-ftp-service-isnt-wo...
I am using the first method of username.maindomain.com
However it is not working. When i tried to visited the newuser.maindomain.com, I got the following error
Unable to determine IP address from host name user.maindomain.com
Nevermind. It also includes the tld after username ..for example..username.com.maindomain.com