nftables

    Replace iptables on recent distributions.

    documentation

    List tables

    nft list tables
    

    List rules of a table

    Here is for filter table

    nft list table filter
    

    List all rules

    nft list ruleset
    

    Import from iptables

    # transform to nftables
    iptables-restore-translate -f /etc/iptables/rule.v4 > ruleset.nft
    
    # load it (add -c to check if its valide rules)
    nft -f ruleset.nft
    
    # save it
    nft list ruleset >/etc/nftables.conf
    

    source

    Flush

    nft flush ruleset