Zkus takhle:

<VirtualHost *:80>
ServerAdmin webmaster@localhost

ServerName tvojedomena.cz
ServerAlias tvojedomena.cz *.tvojedomena.cz

DocumentRoot /var/tvojedomena

<Directory "/var/tvojedomena">
Options Indexes FollowSymLinks MultiViews
AllowOverride all
Order allow,deny
allow from all

</Directory>
</VirtualHost>