打開網(wǎng)絡(luò)適配器設(shè)置：按Windows R，輸入ncpa.cpl，右鍵當前連接選擇屬性；2. 配置TCP/IPv4 DNS：選擇“使用下面的DNS服務(wù)器地址”，輸入首選和備用DNS（如8.8.8.8和8.8.4.4），勾選退出時驗證設(shè)置，點擊確定；3. 可選命令行配置：使用PowerShell命令Set-DnsClientServerAddress或netsh設(shè)置DNS；4. 清除DNS緩存：以管理員身份運行命令提示符並執(zhí)行ipconfig /flushdns。更改後無需重啟，設(shè)置立即生效，適用於提升速度、隱私或故障排查，但在受管理網(wǎng)絡(luò)中可能受組策略限制，必要時可恢復(fù)原始設(shè)置。

Configuring DNS client settings in Windows allows you to change how your computer resolves domain names into IP addresses. Whether you're switching to a faster DNS (like Google DNS or Cloudflare), troubleshooting network issues, or enhancing privacy, here's how to do it properly.

1. Open Network Adapter Settings

First, you need to access the network interface you're using (Wi-Fi or Ethernet):

• Press Windows R , type ncpa.cpl , and press Enter. This opens Network Connections .
• Right-click your active network connection (eg, "Wi-Fi" or "Ethernet") and select Properties .

2. Configure DNS in TCP/IPv4 Settings

In the network adapter properties:

• Scroll down and select Internet Protocol Version 4 (TCP/IPv4) , then click Properties .
• You'll see two options:
  • Obtain DNS server address automatically – Uses your router or ISP's DNS.
  • Use the following DNS server addresses – Lets you set custom DNS.

To use a custom DNS (recommended for performance or security):

• Select Use the following DNS server addresses .

  

• Enter preferred and alternate DNS servers. For example:

   Preferred DNS server: 8.8.8.8
  Alternate DNS server: 8.8.4.4

  (This is Google DNS. Alternatives: Cloudflare = 1.1.1.1 / 1.0.0.1, OpenDNS = 208.67.222.222 / 208.67.220.220)

• Check Validate settings upon exit to test connectivity.

• Click OK , then Close .

? Tip: You can also adjust settings for Internet Protocol Version 6 (TCP/IPv6) if your network supports IPv6. Use corresponding IPv6 DNS addresses (eg, Google: 2001:4860:4860::8888 ).

3. Optional: Use Command Line (PowerShell or netsh)

For automation or advanced users, you can configure DNS via PowerShell:

 Set-DnsClientServerAddress -InterfaceAlias "Wi-Fi" -ServerAddresses "8.8.8.8,8.8.4.4"

Replace "Wi-Fi" with your actual interface name (find it with Get-NetAdapter ).

Or using netsh (legacy but still functional):

 netsh interface ip set dns "Wi-Fi" static 8.8.8.8
netsh interface ip add dns "Wi-Fi" 8.8.4.4 index=2

4. Flush DNS Cache

After changing DNS settings, clear the local cache to ensure new settings take effect:

• Open Command Prompt as Administrator.

• Run:

   ipconfig /flushdns

This removes old DNS entries stored on your PC.

Final Notes

• If you're on a corporate or managed network, DNS settings may be controlled by group policy.
• Using public DNS improves speed or privacy but may bypass local content filtering.
• Always note down original settings in case you need to revert.

Basically, changing DNS in Windows is straightforward—just a few clicks in the network properties. Doesn't require a restart, and changes apply immediately.

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