Originally Posted by falko
This will only work inside your local network. Say you have configured DNS for the domain example.com so that it points to 192.168.0.100 (internal IP address), then you can use the DNS server inside your local network, because example.com will be resolved to 192.168.0.100. If someone outside your local network uses the DNS server and wants to access example.com, that won't work because example.com will still be resolved to 192.168.0.100 which is not a public IP address and therefore cannot be accessed from the outside.
Do I also have to use external IP address in ISPConfig under:
or just use internal IP address for it and all the newly created websites?
The default ISPConfig's Servername is Server 1. Do I have to replace it with real hostname as same as stated in /etc/hostname or just use Server 1 as a reference only?