Subdomains

[marcel]

If i want more than one web-app access throught the internet i think i need sub domain names. I want to access my website though my http://yourdomain.com and lets say Subsonic though http://subsonic.yourdomain.com. Is this also possible for the http://yoursubdomain.yourhda.com? Should be a nice feature for the people who has a own domain but also for the people with the subdomain.yourhda.com. I'll hope my explanation is clear...