Взято с wiki https://wiki.debian.org/iptables
iptables-save > /etc/iptables.up.rules
To make sure the iptables rules are started on a reboot we’ll create a new file:
editor /etc/network/if-pre-up.d/iptables
Add these lines to it:
#!/bin/sh
/sbin/iptables-restore < /etc/iptables.up.rules
The file needs to be executable so change the permissions:
chmod +x /etc/network/if-pre-up.d/iptables
