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To save your iptables rules on a Ubuntu system you can do the following:Install package iptables-persistent with sudo apt install iptables-persistent When you have made new rules later on then you must save this rules with the command: sudo dpkg-reconfigure iptables-persistent

sudo update-alternatives –config editor you make the choice …

Install for Ubuntu the package smartmontools with command sudo apt install smartmontools next select in webmin in the section un-used modules module smart drive status and there you go!