NSLOOKUP is used to check Domain Name Service (DNS) functionality, to query DNS servers, to verify correct configuration and to troubleshoot errors. The nslookup tool can be used as a single command from the command line or it can be used in interactive mode. There are also websites on the Internet that provide NSLOOKUP services. nslookup is provided with Linux, Unix and WIndows NT systems. It is not installed with Windows 95 or 98.

Example: NSLOOKUP one-line command

C:\WINDOWS\system32\cmd.exe

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\InetDaemon>nslookup www.google.com
Server: ns1.inetdaemon.com
Address: 192.168.1.254

Non-authoritative answer:
Name: www.l.google.com
Addresses: 216.239.37.104, 216.239.37.99
Aliases: www.google.com

Example: NSLOOKUP (Interactive Mode)

C:\WINDOWS\system32\cmd.exe

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\InetDaemon>nslookup
Default Server: ns1.inetdaemon.com
Address: 192.168.1.254

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Web Based Nslookup

There are various websites that can perform NSLOOKUP as well (if for some odd reason, DNS isn't working where you are).

 

TOOLS | Ping | Traceroute | nslookup | dig


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