![]() ![]() If you are a system or network administrator it’s very important that you know how to quickly resolve DNS related issues. This command is built into all Windows operating systems, it’s free and easy to use. That is why it’s important to know how to use the Nslookup command. You need a way to quickly troubleshoot and resolve these issues. If you have a local DNS server issue then your employees can’t work and business is impacted. You will be unable to browse websites, send an email, chat online, stream videos, and so on. When DNS is not working devices cannot communicate. Why you must learn the Nslookup command line tool In the examples below I will show you how to query different resource records. The above example used an A resource record which maps a domain name to an IP address. The computer is then able to communicate to .ĭNS uses resource records to provide details about systems on a network.The next DNS server says it knows the IP address and sends the request back to the computer.If it doesn’t know the IP address of the domain it will forward it on to the next DNS server. ![]() This can be your local Active Directory DNS server or your ISP DNS server.
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