Default configuration file: /etc/httpd/conf.d/
You will need to create a vhost in this directory, with the file ending in .conf.

For example:
/etc/httpd/conf.d/example.co.uk.conf

<VirtualHost *:80>
    ServerName example.com
    ServerAlias www.example.com
    DocumentRoot /var/www/vhosts/example.com/public_html

    <Directory /var/www/vhosts/example.com/public_html>
        Options Indexes FollowSymLinks
        AllowOverride None
        Order allow,deny
        Allow from all
    </Directory>

    ErrorLog /var/log/httpd/example.com-error_log
    CustomLog /var/log/httpd/example.com-access_log common
</VirtualHost>

:%s/example.com/newwebsite.com

Once the vhost has been created you will need to reload apache for the configuration to take effect

It is important to note that apache WILL server hidden content (hidden files defined by '.' eg .hidden).
The httpd.conf or apache2.conf file comes with an entry preventing .htaccess and .htpasswd files being served:

# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
#
<Files ~ "^\.ht">
    Order allow,deny
    Deny from all
    Satisfy All
</Files>

<LocationMatch ^(.*/)\..*>
  Order Allow,Deny
  Deny from All
  Satisfy All
</LocationMatch>