Couldn't you have it so that webmin checks if the hostname is a fully qualified domain name? If it is, use that, if not use the reverse IP? I know it'd be a bit of coding, but then we get the best of both worlds.
On 28 November 2012 17:54, Jamie Cameron <firstname.lastname@example.org>
- instead it does a reverse DNS lookup of the IP the browser is connected to. However, in cases like EC2 where that IP internal, it doesn't actually match the hostname the browser was using.