Open your QVW document and go to menu "Tools -> Objects Client Page Generator". Here you can generate AJAX pages of your QVW document. You would, then, need to host these pages on a web server and have connectivity with your QlikView server. Hope this helps.
OK, does that mean that when we want to acces QlikView from the internet, that only the QlikView server has to be confifured for this? So is it the only way to install another QlikView community server on a server in the DMZ to publish QlikView via the internet?
Actually you can run IIS and QVS on separate machines.
If you are looking at autogenerated ZFC pages then you need to look into the QvsViewClient.asp file (usually installed somewhere like C:\Program Files\QlikView\Server\QvClients\QvAjaxZfc) you will see a line near the top with a variable named host which by default points to localhost but can be changed...