I just installed ubermix 1.07 and I'm trying to get the parental controls add-on working via the deb file available from the download files page, parental_controls_1.01.deb. Installing this attempts to bring up the ubermix_firewall service; however, it fails with the error message:
iptables v1.4.12: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
This apparently originates from a line /etc/init.d/ubermix_firewall:
iptables -t nat -F
And error message can occur if the iptable_nat kernel module cannot be loaded. Looking under /lib/modules/3.7.9-36-generic, it does not appear that the iptable_nat module is provided. (There are other iptable_* modules there, though, e.g. iptable_mangle.)
So my first question would be, has anyone successfully installed the parental_controls_1.01.deb package successfully with ubermix 1.07? If so, were any special fixes required (e.g. updated kernel)? Otherwise, any suggestions?
Assuming I haven't done anything peculiar, it would appear that either the parental_controls needs updating to work with the latest kernel or a different kernel build is needed.