Main host goes away
If you are adding virtual hosts to an existing web server, you must also create a block for the existing host. The ServerName and DocumentRoot included in this virtual host should be the same as the global ServerName and DocumentRoot. List this virtual host first in the configuration file so that it will act as the default host.
Liste primeiro o seu servidor padrão (geralmente as pessoas usam o padrão 000 se você tiver um diretório /etc/apache2/sites-enabled
)