I have a new installation and am not able to serve sites. I believe I set up the Ip addresses OK and php versions properly. I do not think there are any serious errors as the ISPconfig control panel appears to be working good. Is there a good checklist or other to help look for errors and resolve the problem. Thanks
start with 'ping <website FQDN>' from a terminal replacing <website FQDN> with the actual domain name of the website. don't worry too much if it says there's no reply, or it sits there doing nothing, ICMP could be blocked by a server firewall, however, when you run the command, you should get the first line afterwards stating that it's pinging the domain name, followed by it's IP. make sure that IP is actually the IP of the server hosting the website. if not, you're first problem is the dns. if it is, follow on with 'wget http://<website FQDN>' the response from this should tell you if it can connect to that server on port 80, and if it can, if it's then redirected to port 443, and if so, it it can also connect to that server on port 443. if it can't connect to either port 80 or 443 then there's a firewall blocking the connection (assuming it's a single server install since you can connect to the control panel). if it's a multi-server install, then possibly apache or nginx isn't running on that server. if it can connect, then it should have downloaded a html file, naming it index.<number>.html, look at the contents of that file, if it's for the correct website, then everything's working, if it's for a different site on that server then your problems with SSL.
