Or you could just set the IP address as the alias of the virtual server. The Host header is sent even for IP addresses. Not a great example, even though I do think ZXTM is pretty sweet.

Correct of course, although sometimes you can't edit the alias of a server, for example, if you're testing or demoing a load balancing configuration against a public site; that's what this is can be useful for.

Track the series of articles; there are a few more examples to follow.