On Thu, 17 May 2018 15:06:35 +0200 Marco Coli via samba <samba at lists.samba.org> wrote: > > I did find the problem is originating with kerberos upgrade. If I > upgrade everything except kerberos rpm to 7.5, dns has no problem. What kerberos rpm ? If it is for the server it shouldn't be installed anyway, Samba uses its own KDC. Rowland