How to Test if DNS Is Working Correctly Using nslookup Command

Learn how to quickly check if your DNS is working correctly using the nslookup command on Windows, macOS, and Linux terminals.

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To test if DNS is working correctly, use the command prompt or terminal. For Windows, open Command Prompt and type `nslookup google.com`. For macOS or Linux, open Terminal and use the same command. This command attempts to resolve the domain name `google.com` to an IP address. If it succeeds, showing an IP address, your DNS is functioning. If it fails, it might indicate a DNS issue, requiring further troubleshooting or possibly needing to change your DNS server settings.

FAQs & Answers

  1. What does the nslookup command do? The nslookup command queries Domain Name System (DNS) servers to translate a domain name into its corresponding IP address, helping verify DNS functionality.
  2. How can I fix DNS issues if nslookup fails? If nslookup fails, you can troubleshoot by restarting your router, flushing the DNS cache, or switching to a public DNS server like Google DNS or Cloudflare.
  3. Is nslookup available on all operating systems? Yes, nslookup is available on Windows, macOS, and Linux systems via Command Prompt or Terminal.

Watch More

For more networking tips, check out our guides on how to fix common DNS errors, change DNS server settings, and improve your internet connection speed.

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