I have many Apache VirtualHosts for each of which I use a dedicated SSLCertificateFile.

This is an configuration example of a VirtualHost:

<VirtualHost *:443>

     ServerName subdomain.domain.localhost

     DocumentRoot "/Users/<my_user_name>/Sites/users/public"
     RackEnv development

   <Directory "/Users/<my_user_name>/Sites/users/publ`enter code here`ic">
     Order allow,deny
     Allow from all
   </Directory>

    # SSL Configuration
    SSLEngine on

    #Self Signed certificates
    SSLCertificateFile /private/etc/apache2/ssl/server.crt
    SSLCertificateKeyFile /private/etc/apache2/ssl/server.key
    SSLCertificateChainFile /private/etc/apache2/ssl/ca.crt

</VirtualHost>

Since I am maintaining more Ruby on Rails applications using Passenger Preference Pane, this is a part of the apache2 httpd.conf file:

<IfModule passenger_module>
  NameVirtualHost *:80
  <VirtualHost *:80>
    ServerName _default_
  </VirtualHost>
  Include /private/etc/apache2/passenger_pane_vhosts/*.conf
</IfModule>

Can I use a single SSLCertificateFile for all my VirtualHosts (I have heard of wildcards) instead of creating one of it for each VirtualHost? If so, how can I change the files listed above?