记点防火墙常用命令 12345678910111213141516171819202122#重启防火墙systemctl restart firewalld#启动防火墙systemctl start firewalld#关闭防火墙systemctl stop firewalld#禁用防火墙systemctl disable firewalld#查看防火墙状态systemctl status firewalld#帮助(太多了,于是记几个常用的)firewall-cmd --help#重载防火墙配置firewall-cmd --reload#开放服务firewall-cmd --add-service=ssh --permanent#查看服务是否开放firewall-cmd --query-service ftp#关闭服务firewall-cmd --remove-service=ftp --permanent#防火墙添加端口firewall-cmd --permanent --zone=public --add-port=8080/tcp