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问答 2013-04-09 来自：开发者社区

阿里云的centos防火墙为什么不能启动呢？

今天想启用阿里云主机防火墙，发现启动不了。。。 [root@xxxxxxx ~]# /etc/init.d/iptables start [root@xxxxxxx ~]# /etc/init.d/iptables status iptables：未运行防火墙。

文章 2011-08-26 来自：开发者社区

设置CentOS防火墙开放端口

在我们使用CentOS系统的时候，CentOS防火墙有时是需要改变设置的。CentOS防火墙默认是打开的，设置CentOS防火墙开放端口方法如下：打开iptables的配置文件：vi /etc/sysconfig/iptables 修改CentOS防火墙时注意：一定要给自己留好后路,留VNC一个管理端口和SSh的管理端口下面是一个iptables的示例： # Firewall ....

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