When I reboot, what program is responsible for "CT-based firewall rule"
(dixit jounalctl). I would like to have my own firewall rules, and for now, I
must flush those "CT-based firewall rules" before I set my owns.
Again it's not too important, since I don't reboot very often, but I would
appreciate not to have to spend quite a lot of time to change default setup
each time I reboot.
I already got rid of bind9.service (I have my own DNS config but I need named
of course), Avahi-daemon package (I don't need multicast DNS).
I know the good solution would be to build my own packages with my own choices,
but I haven't the necessary knowledge.