Is it possible to integrate the Samba admin-tools into the Samba4 container? This would simplify the administration of DNS zones even without Windows. As I understood it in Samba WIKI only the binary has to be available in the Samba4 container.
https://wiki.samba.org/index.php/DNS_Administration#Administering_DNS_on_Linux_with_admin-tools
Nice catch @BitStream!
The wiki says
The admin-tools DNS module uses samba-tool as a backend
It might be possible to run it also “remotely” , in the main NethServer host, for instance.