centos7防火墙端口设置

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1.防火墙操作
启动: systemctl start firewalld
查看状态: systemctl status firewalld 
停止: systemctl disable firewalld
禁用: systemctl stop firewalld
2.开放指定端口
firewall-cmd --zone=public --add-port=8000/tcp --permanent   //开放端口
firewall-cmd --reload                                                                   //重新载入,使其生效
3.关闭指定端口
firewall-cmd --zone=public --remove-port=8000/tcp --permanent            //关闭端口
firewall-cmd --reload                                                                   //重新载入,使其生效
4.查看端口状态
firewall-cmd --zone=public --query-port=8000/tcp                            //查看端口状态

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转载自blog.csdn.net/qq_32502511/article/details/84229360