centos7 firewall 常用命令

systemctl start firewalld
systemctl stop firewalld
systemctl enable firewalld
systemctl disable firewalld

firewall-cmd –add-port=xxx/tcp –permanent
firewall-cmd –remove-port=xxx/tcp –permanent
firewall-cmd –reload
firewall-cmd –list-port

firewall-cmd –add-port=xxx-xxx/tcp –permanent