Whois Command Explained: A Step-by-Step Guide to Information Gathering in Linux

Information Gathering tool whois

Definition of whois

A whois command is a utility as a part of the information gathering used  in all of the linux based operating systems. It is used to identify

  • Unknown and distand hosts
  • Networks
  • Even Netadmins if you use the command the right way and you are lucky enough


“WHOIS is a database managed by local internet registrar, availing to us the personal information about the owner for example`: his contact details, his organization and Domain IP  as well as his geographical location “

The usage of whois command

The usage of the ‘whois command’ varies widely from system to system, but nevertheless a common ground is established where you have yo give the IP address after the command.

whois command is behaving differently for ip address and site name

  • For the IP address the information is much more substantial. Here you got addresses, phone numbers, organization handles and everything
  • For the site name you got the server name registrar and the referral URL which is of course for the whois command. as you can notice theat the information is certainly less substantial but fun and relevant if you are just starting.

Typing   whois –help will grant you further information

who is help command

Whois command Examples

The usage of the command in Kali Linux systems is as follows:

whois <ip address/name of the website you want access the information to>

for example   

$whois cybersecuritynotes.com

whois reveal owner's information

Whois command in Kali Linux video tutorial

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