Iptables-restore

https://linux.die.net/man/8/iptables-restore

• apt-get install iptables-persistent
  • iptables-save and iptables-restore

iptables-restore -v

iptables-restore -n iptables-restore --noflush

See also

• iptables, ufw, firewalld, nftables firewall-cmd, netfilter-persistent, iptables -L, iptables-save, iptables-restore, Netfilter