Prevent unauthorized access to your application with Pundit; an authorization library for Ruby on Rails which restricts what resources a given user is allowed to access.

Save expensive calculation time using Rack::Attack, we will learn how to limit requests coming into our application. This gem not only limits requests, but can be used to blacklist or whitelist users as well.

Create dynamic roles that can be assigned to users. Based on the assigned role, the user will be able to perform or view various parts of the application.

A guide to configure your Ubuntu installation and deploy a Ruby on Rails application. Lock down the settings to prevent unwanted access.

Devise is a flexible authentication solution for Rails based on Warden. Learn how to add a stable authentication solution like Devise to your application.