This arrangement seems to use a high % of the iHost CPU capacity when it is dealing with activity and the browser connected to it seems to be slow. You could actually use this to expose port 5800 to the internet for remote access to the CAST GUI but I have not been successful in getting it to work securely with CONNECTION_SECURITY=1, WEB_AUTHENTICATION = 1, WEB_AUTHENTICATION_USERNAME = xxxxxx, WEB_AUTHENTICATION_PASSWORD = yyyyyy.