How to use (firewald) 与 iptables对照版Use (systemctl) to manager (firewalld)To start,stop,restart (firewalld): {代码…} To check (firewalld) state: {代码…} you can also: {代码…} To make (firewalld) auto start, or not auto start on boot, {代码…} Disableing all traffic in case of emergency …