On Tue, Jan 9, 2018 at 7:34 AM, Kristján Valur Jónsson via samba < samba at lists.samba.org> wrote: > > I have finally traced this problem down to a *reload* of named.conf, that > occurs as part of a logrotate. > > Has anyone seen this before? > Yes. https://lists.samba.org/archive/samba/2017-January/205867.html