I've set up a name based virtual domain but I can't get to it from the Web. It shows up fine when I look at it with lynx on the localhost or from my PC in the office, but when looked for on the Web I keep getting some sort of error about host not found. What's the problem?

Is this a registered domain and is it in the root nameservers? It may be that you've got the domain listed in your local DNS but if it's not in the root nameservers and not registered with one of the NICs it's not going to work.