# HOSTNAMES

# if you wish to use start page urls in the format http://username.yourdomain.com (instead of the
# standard http://yourdomain.com/start/username) you can specify yourdomain.com here and configure
# wildcard dns for *.yourdomain.com to point to your Centova Cast web interface server's IP address
set $startpagedomain   centovacast;

# you can specify the hostname for your web interface here, although it's usually not needed
server_name            centovacast;


how to configure this?

You can just log into your domain control panel, create a vhost and forward it to the url you want.  Probably the easiest way.  I have "http://control.********.com" going to my Centova control panel.