On my Ubuntu server (installed KVM and Kimchi), I noticed that the
iptables are changed after a reboot. Unfortunately I did not find out which script is responsible for these changes.
I tried to store my own settings in `/etc/iptables/rules.v4? and bring them back after reboots by adding
/sbin/iptables-restore < /etc/iptables/rules.v4
/etc/rc.local. When I manually execute this line, it works properly. But when I rebooted the machine again, my settings were overridden by the other script again. I conclude that my line from
/etc/rc.localis executed before this external script, hence overridden.
Which one could it be and how could I find it out?