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That statement spawned "change your serving environment entirely" statements, but I disagree.
As an Ubuntu user, you should be (or get) familiar with using APT, Synaptic, or whatever your software package management preferences are (but don't mix one with the other, that's a terrible idea), instead of mucking with a serving environment you won't get support for from Ubuntu Forums\IRC. I wouldn't bet against someone wanting to reply, "Well I * and I've had no problems...", and that's basically what I'm doing, too.
My first Dragonfly install was on my LAN, in a Debian Sarge LAMP which I put together via Aptitude. The built-in Debian "webserver" option (via debinstall, or some such) was too chunky, etc.
On WINDOWS, I agree that a prepackaged all-in-one is usually more comfortable and works for localhost. In Linux, if you care enough to use a CMS, you might consider caring enough to dig into your daemons individually, IMHO.
But it would work, and they make a good suggestion in saying to test in VMWare, if you can. I've a sore spot for Webmin, too. Of course, I'm just throwing my 122 cents in, since I suspect you already did this: ssl.scroogle.org/cgi-b...p+tutorial