Create a parent portal in dotnetnuke

Dnn is installed on D: \ dotnetnuke \ dnn313 localhost/dnn313
The new portal is set to parent in localhost/nportal portaltype

In IIS, create a new virtual directory nportal pointing to D: \ dotnetnuke \ dnn313 or right-click D: \ dotnetnuke \ dnn313 and choose share & Security (XP) Web Sharing to add an alias nportal

You can access the new portal through localhost/nportal to implement a codebase, a database, and multiple portals.

The content of localhost/dnn313 and localhost/nportal is completely different !!

Create a site
Point all domain names to the site where dnn is located, and create a site on dnn, such as AAA. Test. com and BBB. Test. com.

Create sub-sites under aaa.test.com and bbb.test.com respectively
If parent is not used, it cannot be implemented.
You can refer
Http://forums.asp.net/837529/ShowPost.aspx