whois Command on Linux

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

whois Command on Linux


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 whois
OR
$ whois --help
The output terminal as below

whois Command on Linux help



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