9. Whois

Description:

•  Whois is a query and response protocol widely used for querying databases that store information about registered domain names. It can reveal ownership information, contact details, and other administrative data.

Examples:

• 1. Basic Whois Query:
     • whois example.com

Explanation: Retrieves ownership information and contact details for the domain example.com.

• 1. Query for IP Address:
     • whois 192.168.1.1

Explanation: Queries the Whois database for ownership information regarding the IP address 192.168.1.1.