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

to /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?


Most likely this is UFW, Ubuntu's own firewall control software.

  • No, it says that it is disabled? – andreas Feb 10 '15 at 12:39

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