根据您的需要，您可以配置 Windows 防火墙设置（在^{(configure Windows Firewall)}Windows 10/8/7中阻止或打开端口），如果您对默认的Windows 防火墙^{(Windows Firewall)}设置不满意，可以恢复默认设置。但是，为此，您需要进入防火墙的高级设置。这很简单，只需打开控制面板并在其搜索框中输入 -防火墙^(Firewall)。然后打开防火墙^(Firewall) 并单击其“高级设置”链接。

我们已经了解了如何管理 Windows 防火墙。在这篇文章中，我们将详细了解如何在Windows 10/8/7防火墙中阻止或打开端口。

在 Windows 防火墙中阻止端口

在Windows 8防火墙的“^{(Windows 8)}高级^(Advanced)设置”中，单击主防火墙对话框左侧窗格中的高级设置链接。^(Advanced)这将打开具有高级安全性的^{(Advanced Security)}Windows 防火墙^{(Windows Firewall)}窗口。

现在，如果您看到防火墙窗口在左侧显示规则列表。从列表中，选择入站规则^{(Inbound Rules)}以显示入站规则部分。

然后，从右窗格中选择“新规则”选项。

这样做将打开“新建入站规则向导”窗口。

从中选择“端口”作为新的规则类型^{(Rule Type)}，然后单击下一步^(Next)。出于安全考虑，我尝试阻止TCP端口。单击^(Click)特定^(Specific)本地端口。然后选择一个端口，如 80，如下面的屏幕截图所示。

单击下一步继续。

接下来^(Next)，选择“阻止^(Block)连接”作为操作^(Action)，然后单击下一步^(Next)。

稍后，选择可用于不同类型连接（域^(Domain)、私有^(Private)和公共^(Public)）的所有配置文件，然后单击下一步^(Next)继续。

为新规则命名您选择的名称。我使用了“阻止可疑端口”。如果需要，您可以将描述添加到新规则中。然而，此步骤是可选的。

最后，单击完成^(Finish)按钮以配置设置。

相关^(Related)： 如何检查哪些端口是开放的^{(How to check what Ports are open)}？

在 Windows 防火墙中打开端口

有时，您可能会觉得需要在Windows防火墙中打开一个端口，以让特定 IP 与您的计算机进行通信。例如，在玩游戏时。打开端口的过程大致相同。您需要做的就是按照新建入站规则向导中的说明，^{(New Inbound Rule wizard,)}指定端口^(Port)并选择允许连接^{(Allow the connection)}。

That’s it!

Free Port Scanner等端口扫描应用程序可帮助您识别网络主机上可用的开放端口和服务。它彻底扫描给定 IP 的特定端口并揭示易受攻击的接入点，从而让您启动操作并将其关闭以阻止攻击者。

现在阅读^{(Now read)}-如何在 Windows 10 的防火墙中阻止程序^{(How to block a program in the Firewall of Windows 10)}。

How to Block or Open a Port in Windows Firewall

According to your needs, you can configure Windows Firewall settings (block or open port in Windows 10/8/7) and restore defaults if you are unsatisfied with the default Windows Firewall settings. However, for this, you need to get to the advanced settings of the firewall. This is simple, simply open up the control panel and in its search box type – Firewall. Then open Firewall and click on its ‘Advanced Settings’ link.

We have already seen how to manage Windows Firewall. In this post, we will see in detail how to block or open a port in Windows 10/8/7 firewall.

Block port in Windows Firewall

When in the ‘Advanced Settings’ of Windows 8 firewall, click the Advanced settings link in the left-hand pane of the main firewall dialog. This will bring up the Windows Firewall with Advanced Security window.

Now, if you see the firewall window shows a list of rules on the left side. From the list, select Inbound Rules to display the inbound rules section.

Then, from the right pane select the ‘New Rule’ option.

Doing so will open the ‘New Inbound Rule Wizard’ window.

From it, select ‘Port’ as the new Rule Type and click Next. For safety purposes, I tried blocking TCP port. Click on Specific local ports. Then choose one port like 80 as shown in the screenshot below.

Click Next to continue.

Next, select ‘Block the connection’ as the Action and click Next.

Later, select all the profiles available for different types of connections (Domain, Private and Public) and click Next to continue.

Give a name of your choice to the new rule. I used ‘block suspicious ports’. If you want, you can add the description to the new rule. This step is however optional.

Finally, click the Finish button to configure the settings.

Related: How to check what Ports are open?

Open port in Windows Firewall

At times, you may feel the need of opening a port in the Windows firewall to let a specific IP communicate with your computer. For example, while playing games. The procedure to open a port remains more or less the same. All you need to do is follow the instructions in the New Inbound Rule wizard, specify the Port and select Allow the connection.

That’s it!

Port Scanning application like Free Port Scanner helps you identify open ports and services available on a network host. It thoroughly scans specific ports for a given IP and reveals vulnerable access points thereby letting you initiate action and close them to attackers.

Now read – How to block a program in the Firewall of Windows 10.

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