What is the primary use of the nslookup tool?

The primary use of the nslookup tool is to resolve DNS queries. This command-line utility is employed by network professionals to check the Domain Name System (DNS) to gather information about domain names and their associated IP addresses. When a user queries a domain name, nslookup communicates with DNS servers to translate the human-readable domain into its numerical IP address, which allows for proper routing of internet traffic.

Using nslookup can help diagnose DNS-related issues, such as confirming whether a domain is properly registered and resolving, checking the expiration of DNS records, or troubleshooting problems related to website accessibility. By facilitating the lookup of these records, nslookup serves as an essential tool in network management and troubleshooting.