php - Dns add www prefix?

Possible Duplicate:
apache redirect from non www to www

Is it possible to configure DNS to add www. prefix to the domain name?

Here is an example of this

Answer

Nope. You have to configure the webserver at yourdomain.com to redirect to www.yourdomain.com.

For example, on apache, you can use this configuration (using mod_alias):

  ServerName www.yourdomain.com
  ## Actual configuration here...




  ## redirect non-www to www
  ServerName www.yourdomain.com
  ServerAlias yourdomain.com

  RedirectMatch permanent ^(.*) http://www.yourdomain.com$1