I have one dotnetnuke installation under www.mysite.com, now I want a second dotnetnuke installation under sub.mysite.com, so the two sites will share the same root domain name (mysite.com) but have different dotnetnuke installations and different databases. (Note, I am not talking about child/parent portals. I know you can have subdoman pointed to a child/parent portal. That's not what I want.)

Is this possible? If so how to make it happen?

Any help on this would be appreciated.

Hi Vera,

Thanks for getting back.

I've tried it but failed. I created  "sub.mysite.com" and have this sub domain pointed to the second installation folder. I think I set up everything else correctly (including the default page, .net version, permission, db connection, etc). It just doesn't work. But of course if I use a different domain name ( www.mysite2.com) and have it pointed to the second installation folder, it started to work perfectly.

Did I do anything wrong? Thanks!