#!/bin/bashset-e
RULESET="table ip x { chain y { ct state invalid drop ct state established,related accept } chain z { tcp dport { 1 } accept tcp dport 2-3 drop tcp dport 4 accept } chain w { ip saddr 1.1.1.1 counter accept ip saddr 1.1.1.2 counter drop }}"$NFT-o-f-<<<$RULESET