How to Look Up Website Information (Whois) in Linux
Today we’ll learn how to look up whois information of a website. We’re able to get whois information by proving domain name or IP address.
Table of Contents
Run this command to install whois on your machine:
# Debian (Ubuntu, Kali etc.) sudo apt install whois # Fedora (Red Hat, CentOS etc.) dnf install whois # OpenSUSE zypper in whois # Arch Linux pacman -S whois
Run this command to see all available options:
whois #or whois -h
-h HOST, --host HOST connect to server HOST -p PORT, --port PORT connect to PORT -I query whois.iana.org and follow its referral -H hide legal disclaimers --verbose explain what is being done --help display this help and exit --version output version information and exit These flags are supported by whois.ripe.net and some RIPE-like servers: -l find the one level less specific match -L find all levels less specific matches -m find all one level more specific matches -M find all levels of more specific matches -c find the smallest match containing a mnt-irt attribute -x exact match -b return brief IP address ranges with abuse contact -B turn off object filtering (show email addresses) -G turn off grouping of associated objects -d return DNS reverse delegation objects too -i ATTR[,ATTR]... do an inverse look-up for specified ATTRibutes -T TYPE[,TYPE]... only look for objects of TYPE -K only primary keys are returned -r turn off recursive look-ups for contact information -R force to show local copy of the domain object even if it contains referral -a also search all the mirrored databases -s SOURCE[,SOURCE]... search the database mirrored from SOURCE -g SOURCE:FIRST-LAST find updates from SOURCE from serial FIRST to LAST -t TYPE request template for object of TYPE -v TYPE request verbose template for object of TYPE -q [version|sources|types] query specified server info
Usage & Examples
The usage syntax of whois:
whois [OPTION]... OBJECT...
Domain name example:
The whois preview:That’s it. Thanks you. ?
Preview may take a few seconds to load.
Below you will find some common used markdown syntax. For a deeper dive in Markdown check out this Cheat Sheet
Bold & Italic
Bold **double asterisks**
Three back ticks and then enter your code blocks here.
# This is a Heading 1
## This is a Heading 2
### This is a Heading 3
> type a greater than sign and start typing your quote.
You can add links by adding text inside of  and the link inside of (), like so:
To add a numbered list you can simply start with a number and a ., like so:
1. The first item in my list
For an unordered list, you can add a dash -, like so:
- The start of my list
You can add images by selecting the image icon, which will upload and add an image to the editor, or you can manually add the image by adding an exclamation !, followed by the alt text inside of , and the image URL inside of (), like so:
To add a divider you can add three dashes or three asterisks:
--- or ***