Hello,
Not all hosting providers give you access to the host headers and they charge you for pointing an additional domain to your DotNetNuke installation. - The host headers will allow you to create parent portals that use any URL not just subdomains, so on my hosting account I could have for example:
www.mywebsite.com
www.atotallydifferentwebsite.com
www.yetanothersite.com
Each of these is entered into their host headers and allows the DotNetNuke installation to pick up the domain name and point it to the correct portal.
If you want to set this up I use reseller choice, you can see comments about them here:
Reseller ChoiceThere is some setup time involved as you have to configure the hosting control panel before you get started, but there are videos to help you work it out and they have good support to help you.
Bonus: If you enter this coupon code:
LS20 when signing up to ResellerChoice you will get 20Gigs of bandwidth for free
Thanks,