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In recent versions of Ubuntu, Debian, and Arch /usr/bin/iptables is an iptables-compatible interface to nftables. That's what docker is using on those systems,
by 5e92cb50239222b 3y ago
In recent versions of Ubuntu, Debian, and Arch /usr/bin/iptables is an iptables-compatible interface to nftables. That's what docker is using on those systems, and it works fine. You can manage those rules with /usr/bin/nft.