How to make URL pattern like app.example.com?

Question

I have my domain say "example.com" (java, GlassFish Web Server)

Now I have 3 application.. say A,B,C.

Now what I want is, if user hit a.example.com OR example.com/X then A application should get invoked. similarly for B and C. b.example.com or example.com/B, c.example.com or example.com/C.

like mail.google.com news.google.com.

How to configure this?

I couldn't query it in Google as I didn't know how to query for this exactly. So posted here. Thankx guyz in advance.

Answer 1

I believe you would have to configure your domain name for that. If your domain is hosted by someone else, like for example GoDaddy.com, you can use their control panel to forward for example a.example.com to example.com/X.

This seems like it would go under the category of subdomain forwarding.