Originally Posted by tommsen
i added a zone via ispconfig and the first NS is the server itself but the second one is a Hetzner NS. If i do changes in ispconfig, the hetzner NS doesn't seem to be notified as it doesn't show up the changes on that hetzner NS
Did you add the ip address of the secondary ns from hetzner in the "Allow zone transfers to" field of the zone? If the Ip is added there, then your server will notify the secondary ns about zone changes.