linux无法连接首先查看防火墙

一、下面是red hat/CentOs7关闭防火墙的命令!

1:查看防火状态

systemctl status firewalld

service iptables status

2:暂时关闭防火墙

systemctl stop firewalld

service iptables stop

3:永久关闭防火墙

systemctl disable firewalld

chkconfig iptables off

4:重启防火墙

systemctl enable firewalld

service iptables restart

5:永久关闭后重启

//暂时还没有试过

chkconfig iptables on

防火墙添加打开端口8080

firewall-cmd --permanent -add-port=8080/tcp

重新加载

firewall-cmd --relod

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