[Samba] update the dns via samba-tool but it doesn't allow it.

[Leo C]

I want to update the dns via samba-tool but it doesn't allow it.


Calling samba-tool dns add --use-kerberos off -P ['192.168.1.14', 'cuba.cu',
'_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones', 'SRV', '
ms.cuba.cu 389 0 100']

ERROR: Connecting to DNS RPC server 192.168.1.14 failed with (3221226038,
'The transport-connection attempt was refused by the remote system.')
Failed 'samba-tool dns' based update of SRV
_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.cuba.cu ms.cuba.cu
389
Failed update of 29 entries

How to fix that?