在CentOS 7上打开防火墙端口 [英] Open firewall port on CentOS 7

问题描述

我正在使用CentOS 7，必须确保端口2888和3888已打开.

I am using CentOS 7 and I have to ensure that ports 2888 and 3888 are open.

我阅读了这篇文章，但这没用，因为在CentOS 7 OS上有否iptables save命令.

I read this article but this did not work because on CentOS 7 OS there is no iptables save command.

有人告诉我，上述URL对CentOS 7无效.我应该遵循

Someone told me that the above URL is not valid for CentOS 7. and I should follow this. But this article is not clear to me on exactly what command I need to execute.

我也找到了

firewall-cmd --zone=public --add-port=2888/tcp 

但这无法在重新启动后幸存.

but this does not survive reboots.

那么我该如何打开端口并使其在重启后仍然存活?

So how can I open the ports and make it survive reboots?

推荐答案

使用此命令查找您的活动区域:

Use this command to find your active zone(s):

firewall-cmd --get-active-zones

它将显示public，dmz或其他名称.您只应申请所需的区域.

It will say either public, dmz, or something else. You should only apply to the zones required.

在公开尝试的情况下:

firewall-cmd --zone=public --add-port=2888/tcp --permanent

然后记得重新加载防火墙以使更改生效.

Then remember to reload the firewall for changes to take effect.

firewall-cmd --reload

否则，用public代替您的区域，例如，如果您的区域是dmz:

Otherwise, substitute public for your zone, for example, if your zone is dmz:

firewall-cmd --zone=dmz --add-port=2888/tcp --permanent

这篇关于在CentOS 7上打开防火墙端口的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！