What is whois tool in linux?
whois command on Ubuntu is a command line utility that allows you to look up information about domain names and IP addresses. When you run
whois followed by a domain name or IP address, it will return information about the owner of that domain or the location of the IP address.
For example, to look up information about the domain
example.com, you would run:
This would return information such as the registrar of the domain, the name servers associated with the domain, and the date the domain was registered.
To look up information about an IP address, you can run
whois followed by the IP address. For example:
This would return information about the owner of the IP address, as well as the location and other details about the address.
You can also use the
whois command to search for information about specific fields. For example, to search for the name of the organization associated with an IP address, you can use the
-h option followed by the name of the field you want to search for:
whois -h whois.arin.net "n + 22.214.171.124"
This would return the name of the organization associated with the IP address
How to install whois on Ubuntu/Debian Linux
whois command is usually pre-installed on most Ubuntu systems. However, if it is not installed on your system, you can install it by running the following command:
sudo apt-get update sudo apt-get install whois
This will install the
whois command and any dependencies it requires. Once the installation is complete, you can use the
whois command as described above.
Before you can use the
apt-get command, you need to make sure that your system is set up to use the package manager. This includes installing the
apt package, which is the package manager for Ubuntu and other Debian-based systems.
apt, you will need to have root access to your system, or have a user account with
sudo privileges. You will also need to have a connection to the internet so that the package manager can download the necessary packages from the repositories.
In this tutorial, you learned how to install Whois on Ubuntu/Debian Linux. You can now use Whois to look up domain name or IP address registration information.