Multiple site - apache - httpd - centos

nano nano /etc/httpd/conf.d/pmta-central.conf 

NameVirtualHost 12.34.56.78  

<VirtualHost 12.34.56.78>
 ServerName www.myvirtualhost.com
 ServerAlias myvirtualhost.com
 DocumentRoot d:/myvirtualhost.com/www
 DirectoryIndex index.cfm index.htm index.html
</VirtualHost>

<VirtualHost 12.34.56.78>
    ServerAdmin webmaster@myvirtualhost.com
    DocumentRoot w:/myvirtualhost.com/subdomain
    ServerName subdomain.myvirtualhost.com
    ErrorLog logs/subdomain-error.txt
    CustomLog logs/subdomain-access.txt common
</VirtualHost>