example.conf

NameVirtualHost 127.0.0.2:80

<Directory "/var/www/html/example/">
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Order allow,deny
        Allow from all
</Directory>

<VirtualHost 127.0.0.2:80>
        ServerAdmin neto@localhost
        DocumentRoot /var/www/html/example/public_html
        ErrorLog /var/www/html/example/error_log
        ServerName example.localhost
        LogLevel warn
        ServerSignature On
</VirtualHost>

hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
127.0.0.2   example.localhost
::1         localhost