I have a webserver running ISPConfig with only one IP address. I like to have the IP address set in the System > Server IP addresses page as that then associates the IP address with the servername in any dropdowns. This is a good thing for users picking an IP address in, for example, the DNS wizard, as they'll recognise the server name and have a better chance of knowing which to pick. I had an incident yesterday when I realised that almost all sites were showing my custom placeholder index.html. After a bit of a panic and some investigation I realised that a user had set up a site with the specific IP address of the server selected in the site settings, rather than *. I've set that site back to * and deleted the IP address entry from System > Server IP addresses, and everything is back to normal. As I like to have the IP address in dropdowns, I've re-read the manual and have been experimenting with adding the IP address back in. It seems that, irrespective of whether I set HTTPNameVirtualHost or not, selecting the IP address rather than * for a site will cause the problem again. I'm struggling to understand what's going on here. Could it be something to do with my Apache2 configuration that is allowing this to wreck my setup? I'll hold off posting masses of configs for now, but let me know if you need to see them!