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![external nslookup tool external nslookup tool](https://docs.microsoft.com/en-us/azure/purview/media/catalog-private-link/purview-name-resolution-external.png)
Nslookup can be use in interactive and non-interactive mode. The main use of nslookup is for troubleshooting DNS related problems. It is used for querying the Domain Name System (DNS) to obtain domain name or IP address mapping information. Nslookup is a network administration command-line tool available for many computer operating systems.