I had a router die last night. Changed it out and tried to configure the firewall properly (ssh, ispconfig, http ports open). When I forward port 80 to the server all my sites resolve, but the only thing that comes up is the directory listing of my /var/www. The only thing that has changed on the server is the /etc/networking/interfaces IP address and gateway. Any reason this would be? Something with apache's virtual hosts? Since these are the only changes, what could be wrong? I was on a roll, too... uptime was approaching a year!