@girish, @nebulon :
Thank you for your support, i Fixit ! a few day ago...
Just set up unbound in Cloudron server...
It was enough to add line:
to: /etc/unbound/unbound.conf.d/cloudron-network.conf : local-data: "<my.MYDOMAIN.COM> IN A x.x.x.x"
x.x.x.x is primary IP my server.
V
vojtam
@vojtam