Linux Centos6 Centos7关闭防火墙命令

Centos6查看防火墙状态

service iptables status

Centos6关闭防火墙命令

service iptables stop

Centos6开启防火墙命令

service iptables start

Centos7查看防火墙状态命令

sudo systemctl status firewalld

Centos7关闭防火墙命令

systemctl stop firewalld.service

Centos7开启防火墙命令

sudo systemctl start firewalld

Centos7重启防火墙命令

firewall-cmd --reload

*Centos7查看系统所有已开放的端口

netstat -anp

Centos7查看端口是否开放命令:yes开启,no未开启

firewall-cmd --query-port=8080/tcp

Centos7开放永久端口命令

firewall-cmd --add-port = 80/tcp --permanent 

Centos7添加需要开放的端口

firewall-cmd --add-port=3306/tcp --permanent

Centos7移除已开放的端口

 firewall-cmd --permanent --remove-port = 80/tcp