[noviKorisnik]

http://httpd.apache.org/docs/misc/rewriteguide.html

Virtual User Hosts

Description:
Assume that you want to provide www.username.host.domain.com for the homepage of username via just DNS A records to the same machine and without any virtualhosts on this machine.
Solution:
For HTTP/1.0 requests there is no solution, but for HTTP/1.1 requests which contain a Host: HTTP header we can use the following ruleset to rewrite http://www.username.host.com/anypath internally to /home/username/anypath:

RewriteEngine on
RewriteCond   %{HTTP_HOST}                 ^www\.[^.]+\.host\.com$
RewriteRule   ^(.+)                        %{HTTP_HOST}$1          [C]
RewriteRule   ^www\.([^.]+)\.host\.com(.*) /home/$1$2

...
http://www.organicseo.org/URL_Rewrit...ing_Subdomains