Hello otherperson!

Yes, for this sentence "all servers must have a different host name" as said in mentioned manual means that you need to install separate UNA on a separate server with another URL. So if you have URL of main site like "http://happy.com" then remote transcoding should have any or URL, but not "happy.com".

Apache or Windows server is NOT required on the remote server in order to make this happen, right?

As you install UNA on new server then it is necessary to meet all UNA requirements too.

About your second part of the second post, you'd better have Web based server because it is more reliable to operate their cooperation and constant availability.

With the best regards, Leonid