打开配置文件 [root@localhost ~]# vi /etc/sysconfig/iptables 正确的配置文件 # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A
1. iptables是linux下的防火墙,同时也是服务的名称. service iptables status service iptables start service iptables stop service iptables restart 分别是查看.启动.停止.重启防火墙 2. 开放特定的端口 /etc/sysconfig/iptables 添加一行 -A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCE