[Samba] Problems after upgrade Samba 4

[L.P.H. van Belle]

> Now we come to your fix, Bind9 is running on port 53 and 
> blocking your DCs internal dns server.

.. Oeps, i should have seen that. 
But yes, removing bind9 should fix it. 


> >
> > The packages "bind9 ctdb ldb-tools smbldap-tools ufw 
> glusterfs-common
> > libcephfs1" were suggesteds by apt-get command itself.
> 
> Why did you install the 'recommended' packages ????

Uhh.. Rowland .. These are "suggests" not Recommends. ;-)  

apt-cache show samba , shows that. 

Recommends: attr, logrotate, samba-dsdb-modules, samba-vfs-modules
Suggests: bind9 (>= 1:9.5.1), bind9utils, ctdb, ldb-tools, ntp | chrony (>= 3.0-1), smbldap-tools, winbind, ufw

;-) 


> 
> You seem to using the internal dns server
> 
> You cannot run ctdb on a Samba AD DC
> 
> smbldap-tools is for an NT4-style PDC
> 
> ufw is a firewall
> 
> glusterfs-common & libcephsfs1 are for clusters
> 
> in fact, the only one you 'might' need is ldb-tools
> 
> Now we come to your fix, Bind9 is running on port 53 and 
> blocking your DCs internal dns server.

.. Oeps, i should have seen that. 
But yes, removing bind9 should fix it. 

Greetz, 

Louis

P.s 
Upgrading samba from original or my repo to an higher version on my repo.

Just change repo line part "stretch-sambaXX" to stretch-samba410
apt update 
apt dist-upgrade