centos7防火牆命令

查看狀態：systemctl status firewalld或者 firewall-cmd --state

禁用防火牆：systemctl stop firewalld

開啓防火牆命令：systemctl start firewalld

設置開機啓動：systemctl enable firewalld

停止並禁用開機啓動：sytemctl disable firewalld

查看端口列表：firewall-cmd --permanent --list-port

firewall開啓端口命令：firewall-cmd --zone=public --add-port=80/tcp --permanent

firewall關閉端口命令：firewall-cmd --zone=public --remove-port=80/tcp --permanent

批量添加區間端口：firewall-cmd --zone=public --add-port=4400-4600/udp --permanent

重啓防火牆命令：firewall-cmd --reload 或者 service firewalld restart