firewalld 放开 关闭端口

firewalld 放开 关闭端口：
systemctl start firewalld
systemctl enable firewalld

firewall-cmd --permanent --add-port=8080/tcp
firewall-cmd --reload
firewall-cmd --list-ports

移除特定端口的所有规则：
firewall-cmd --permanent --zone=public --remove-port=端口号/tcp
firewall-cmd --reload