<VirtualHost *:80>
    ServerName seatable.mydomain.com
    ProxyRequests Off
    <Proxy *>
        Order deny,allow
        Allow from all
    </Proxy>
 ProxyPreserveHost On
    ProxyPass / http://192.168.10.81/
    ProxyPassReverse / http://192.168.10.81/
    <Location />
        Order allow,deny
        Allow from all
    </Location>
</VirtualHost>