How To Install john on Ubuntu 18.04
Introduction
In this tutorial we learn how to install john
on Ubuntu 18.04.
What is john
john is:
John the Ripper is a tool designed to help systems administrators to find weak (easy to guess or crack through brute force) passwords, and even automatically mail users warning them about it, if it is desired.
Besides several crypt(3) password hash types most commonly found on various Unix flavors, supported out of the box are Kerberos AFS and Windows NT/2000/XP/2003 LM hashes, plus several more with contributed patches.
There are three methods to install john
on Ubuntu 18.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install john Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install john
using apt-get
by running the following command:
sudo apt-get -y install john
Install john Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install john
using apt
by running the following command:
sudo apt -y install john
Install john Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install john
using aptitude
by running the following command:
sudo aptitude -y install john
How To Uninstall john on Ubuntu 18.04
To uninstall only the john
package we can use the following command:
sudo apt-get remove john
Uninstall john And Its Dependencies
To uninstall john
and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove john
Remove john Configurations and Data
To remove john
configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge john
Remove john configuration, data, and all of its dependencies
We can use the following command to remove john
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge john
References
Summary
In this tutorial we learn how to install john
package on Ubuntu 18.04 using different package management tools: apt
, apt-get
and aptitude
.