Linux系统开启和关闭防火墙命令

1.永久有效

开启： chkconfig iptables on
关闭： chkconfig iptables off

2.即刻生效

开启： service iptables start
关闭： service iptables stop

3.开启部分端口

vim /etc/sysconfig/iptables
添加想要开启的相关端口
-A INPUT -m state –state NEW -m tcp -p tcp –dport 6379 -j ACCEPT
-A INPUT -m state –state NEW -m tcp -p tcp –dport 8080 -j ACCEPT
-A INPUT -m state –state NEW -m tcp -p tcp –dport 8081 -j ACCEPT
-A INPUT -m state –state NEW -m tcp -p tcp –dport 8082 -j ACCEPT
-A INPUT -m state –state NEW -m tcp -p tcp –dport 3306 -j ACCEPT

重启防火墙命令

service iptables restart