浏览Internet^(Internet)时可能会遇到许多错误。它们可能只是随机发生或在您安装任何类型的软件之后发生。如果你遇到这个错误，你不必惊慌。这是正常的！如果您看到消息[Fiddler] DNS lookup for website failed system.net.sockets.socketexception No such host is known when you try to visit a website,这里有一些您可以尝试解决问题的方法。

[Fiddler] 网站的 DNS 查找失败

在开始之前，只需重新启动计算机和WiFi路由器，看看问题是否会消失。如果不继续其他建议。

1] DNS刷新

DNS或域名系统^{(Domain Name System)}服务器包含一个域列表，例如www.thewindowsclub.com到IP 地址^{(IP Address)}条目。这些条目也可能不时更改。这些条目有时会存储在您的计算机中，以便更快地访问您经常访问的网站。但是，当这些条目发生变化时，您会遇到一些常见错误，例如上面屏幕截图中显示的错误。因此，为了解决此问题，您需要刷新DNS 条目^(Entries)。此过程也称为DNS 刷新^{(DNS Flushing)}。

要刷新 DNS 缓存^{(flush the DNS cache)}，您需要在Windows 11/10/8/7上执行以下步骤。

以管理员身份打开 CMD^{(Open CMD as an administrator)}。现在执行以下命令：

ipconfig/flushdns

现在它会显示一条消息说

Sucessfully flushed the DNS Resolver Cache.

这意味着您已成功刷新本地存储在计算机上的DNS 服务器条目。^{(DNS Server)}

现在您将能够正常浏览该网站。

2]更改^(Changing)配置的DNS服务器地址^{(DNS Server Addresses)}

您也可以尝试更改^{(changing the DNS Server)}网络的 DNS 服务器。您可以覆盖计算机上的默认DNS（域名服务器^{(Domain Name Server)}）设置，这样您就可以指定使用哪个DNS服务器，或者应该为特定域使用哪个 IP 地址。

这些建议之一肯定会帮助您解决问题。^{(One of these suggestions is sure to help you fix the issue.)}

[Fiddler] DNS lookup for website failed system.net.sockets.socketexception

There are many errors that you may face while browsing the Internet. They maу just occur randomly or аfter you install any sort of software. If you face this error, you need not panic. It’s normal! If you see a message [Fiddler] DNS lookup for website failed system.net.sockets.socketexception No such host is known when you try to visit a website, here are a few things you could try to resolve the issue.

[Fiddler] DNS lookup for website failed

Before you begin, simply restart your computer and your WiFi router and see if that makes the problem go away. If not proceed with the other suggestions.

1] DNS Flushing

DNS or Domain Name System servers contain a list of domains like www.thewindowsclub.com to IP Address entries. These entries may change time to time as well. These entries are sometimes stored in your computer to allow faster access to the websites you visit frequently. But when these entries change, you face some common errors like the one shown in the screenshot above. So, in order to fix this, you will need to flush the DNS Entries. This process is also called as DNS Flushing.

To flush the DNS cache, here are the steps that you need to follow on Windows 11/10/8/7.

Open CMD as an administrator. Now execute the following command:

ipconfig/flushdns

Now it will show a message saying

Sucessfully flushed the DNS Resolver Cache.

This means that you have successfully flushed the DNS Server entries stored locally on your computer.

Now you will be able to browse the website normally.

2] Changing configured DNS Server Addresses

You can also try changing the DNS Server for your network. You can override the default DNS (Domain Name Server) settings on your computer so you can specify which DNS server is used, or which IP address should be used for a particular domain.

One of these suggestions is sure to help you fix the issue.

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