Just in case this requires explicit clarification: iptables-restore < /etc/iptables.conf # now I have a firewall nft flush ruleset # now I don't iptables-restore < /etc/iptables.conf # now I do nft -f /etc/nftables.conf # now I have whatever that is, read: nothing by default
This would have something to do with the fact that iptables uses the nftables backend, I guess?