How To Install ruby-cancancan on Kali Linux

Introduction

In this tutorial we learn how to install ruby-cancancan on Kali Linux.

What is ruby-cancancan

ruby-cancancan is:

CanCanCan is an authorization library for Ruby >= 2.2.0 and Ruby on Rails = 4.2 which restricts what resources a given user is allowed to access.

All permissions can be defined in one or multiple ability files and not duplicated across controllers, views, and database queries, keeping your permissions logic in one place for easy maintenance and testing.

It consists of two main parts:

1. Authorizations library that allows you to define the rules to access different objects, and provides helpers to check for those permissions.
2. Rails helpers to simplify the code in Rails Controllers by performing the loading and checking of permissions of models automatically and reduce duplicated code.

There are three methods to install ruby-cancancan on Kali Linux. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install ruby-cancancan Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install ruby-cancancan using apt-get by running the following command:

sudo apt-get -y install ruby-cancancan

Install ruby-cancancan Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install ruby-cancancan using apt by running the following command:

sudo apt -y install ruby-cancancan

Install ruby-cancancan Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install ruby-cancancan using aptitude by running the following command:

sudo aptitude -y install ruby-cancancan

How To Uninstall ruby-cancancan on Kali Linux

To uninstall only the ruby-cancancan package we can use the following command:

sudo apt-get remove ruby-cancancan

Uninstall ruby-cancancan And Its Dependencies

To uninstall ruby-cancancan and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove ruby-cancancan

Remove ruby-cancancan Configurations and Data

To remove ruby-cancancan configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge ruby-cancancan

Remove ruby-cancancan configuration, data, and all of its dependencies

We can use the following command to remove ruby-cancancan configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge ruby-cancancan

Dependencies

ruby-cancancan have the following dependencies:

• ruby

References

• ruby-cancancan website

Summary

In this tutorial we learn how to install ruby-cancancan package on Kali Linux using different package management tools: apt, apt-get and aptitude.