Hi Darren,
Beginning with GAS 2.20, the GAS behaviour against webserver has changed.
You can still use legacy connectors method but to get better performance, you could use the new ISAPI mechanism. This new method implies that the GAS is embedded within the ISAPI extension itself.
See details in our documentation:
https://4js.com/online_documentation/fjs-gas-2.20.01-manual-html/User/ISAPIInstall.htmlSince the GAS is fully integrated with IIS, in your environment you will have to install an IIS in all the 3 machines where you installed a GAS. Then your web server will have to manage the connections between your 3 application servers.
Concerning your second question, you can have more than one gasd running on a same machine using additional ports.
Could you please tell me what is the FAQ you are refering to (so we give a little more precision if needed) ?
However, with the GAS 2.20, it is less useful to have several gasd running on a same machine since it's now multi-threaded.
Best regards,
Guney