In Windows, you can use the `nslookup` command to troubleshoot DNS issues. `nslookup` is a command-line tool that allows you to query DNS servers to retrieve information about domain names, IP addresses, and DNS records.
To use `nslookup` to troubleshoot DNS issues, follow these steps:
1. Open the Command Prompt: Press the Windows key, type "cmd," and press Enter to open the Command Prompt.
2. Type the `nslookup` command: In the Command Prompt window, type `nslookup` followed by a space.
3. Enter the domain name or IP address: After the `nslookup` command, type the domain name or IP address you want to troubleshoot. For example, `nslookup example.com` or `nslookup 192.0.2.1`.
4. Press Enter: After entering the domain name or IP address, press Enter to execute the `nslookup` command.
5. Review the results: The `nslookup` command will display the information retrieved from the DNS server. It will show you the IP address associated with the domain name or the domain name associated with the IP address. It may also provide additional information, such as the DNS server that responded to the query.
By using `nslookup`, you can verify if DNS resolution is working correctly for a specific domain name or IP address. If you encounter any issues, such as "Non-existent domain" or "DNS request timed out," it indicates a potential problem with DNS resolution.
Additionally, `nslookup` provides options for more advanced troubleshooting, such as querying specific DNS servers, specifying a different DNS record type, or setting debugging options. You can access the `nslookup` help documentation by typing `nslookup /?` in the Command Prompt.
Note that `nslookup` is a basic DNS troubleshooting tool, and there are other advanced tools available for DNS diagnostics and troubleshooting, depending on your specific needs and environment.