In this tutorial, How to Use whois Command on Linux
WHOIS (pronounced as the phrase "who is") is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block or an autonomous system. Quota from Wikipedia
Download and install Whois Linux command
For Ubuntu, Linux Mint, ElementaryOS and Debian OS:sudo apt-get install whois
For CentOS and RHEL:
sudo dnf install whois
The output terminal as below
The syntax whois command
whois domain
whois public-ip-address
whois [options] public-ip-address
For example whois command
whois huuphan.com
whois 172.67.137.70
Getting help whois command
$ man whoisOR
$ whois --helpThe output terminal as below
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