Linux 防火墙的开启、关闭、禁用命令
1.设置开机启用防火墙
systemctl enable firewalld.service
2.设置开机禁用防火墙
systemctl disable firewalld.service
3.启动防火墙
systemctl start firewalld
4.关闭防火墙
systemctl stop firewalld
5.检查防火墙状态
systemctl status firewalld
systemctl enable firewalld.service
systemctl disable firewalld.service
systemctl start firewalld
systemctl stop firewalld
systemctl status firewalld
道可道,非常道;名可名,非常名。 无名,天地之始,有名,万物之母。 故常无欲,以观其妙,常有欲,以观其徼。 此两者,同出而异名,同谓之玄,玄之又玄,众妙之门。