Becasue I want to use the standard port for SSL instead of port 81, I've set up a second IP address. What I have tried to do is to get apache to run on one address with Listen 18.104.22.168:443 and apache2 to un on the other address with Listen 22.214.171.124:80 But when I do this I get apache or apache2 refusing to start because the port is not available. The apache2 config points at a conf file that has no mention of ports or IPs (until I add Listen 126.96.36.199:80) but it links to the ISPConfig-maintained one with all the virtual hosts in it, and they all have IP and ports mentioned for each virtual host. This is a Delian Sarge setup, configured by following the excellent Perfect Setup guide, so it ought to be pretty standard. I've been struggingh with this for over a week and still can't get it working. Help!