Originally Posted by falko
On the ISPConfig server and the firewall.
Hi falko, I got it figured out. It wasn't a problem with ISP Config it did turn out to be a problem with the firewall. Even though the DNAT and inbound rules were correct, the web proxy was getting it. By default my firewall proxies LAN and WAN interface, even though the WAN interface is not listed in the proxy list. All I had to do was to physically add the WAN interface then remove it, then the web site was visible to the outside world.
I do have one question about DNS. I have two DNS servers that reside behind the same IP. the second name server is in mirror mode to the first one. Do I only port forward to the first DNS server and leave forwarding closed for the second one or do I port forward to both of them?