At first I must say webmin is really great.
The last step for me is setting up Webmin as Dns Server and the server from Hetzner are the Slave DNS Server.
I have different Master zones. One for each domain. There is also one Nameserver in each Zone. (server.domainA.tld) This IP is added to the Slave Zone at the Domain Provider.
Port 53 is open. I added a reverse dns entry to the bind9 configuration.
Must I change something at the named.conf? How can I tell the Slave dns server to update when I made an change to one master zone?