On 29.11.2017 00:15, Nuno Oliveira wrote: Hi Nuno,
> I have 2 systems where this happens, but I also confirm that this does > not happen on all systems (Debian testing) where ntp is installed. Any > suggestions on how to diagnose this? I've tried all I could think of in terms of base system variations, but I still cannot reproduce it. I do see the apparmor denials as well, but ntpd starts up fine. Can you try whether allowing the offending calls in a local override fixes this issue? aa-disable /etc/apparmor.d/usr.sbin.ntpd echo '/usr/local/{,s}bin/ r,' >> /etc/apparmor.d/local/usr.sbin.ntpd aa-enforce /etc/apparmor.d/usr.sbin.ntpd Does removing the apparmor profile allow ntpd to start in your case (running the aa-disable command as seen above)? Do you have anything special in your ntp.conf? Bernhard