What is a Cookie? Google it if you do not know. How are cookies transferred between your browser and...
If you'd like to preview the crontab that whenever will deploy, run the following: bundle exec whenever
Web security basics Einführung in die Web Security 🇩🇪 provides essentials for the topic of this card. Read following chapters:
Rubymonk training Read the following Rubymonk articles: Ruby Primer: Ascent (archived copy) Metaprogramming Ruby (archived copy) Metaprogramming Ruby: Ascent (archived...
Stepping forward from JavaScript Basics, the goal of this card is for you to be able to read and write...
If you are writing any amount of Javascript, you are probably using closures to hide local state, e.g. to have...
Understand the differences between git diff and git diff --staged (or git diff --cached) Understand the difference between git...
Action Mailer Basics and Previews Chapter "Task H1: Sending Mail" from Agile Web Development with Rails 7.2 (in our...
In this card we will learn to write code that scales with a large number of database records. We will...
Rails is our web framework. Goals Be able to write a simple Rails application. Understand how Rails talks to the...
Git is our version control system. Goals Understand why we use git. Learn how to work with your local repository...
ActiveModel supplies an errors object that behaves similar to a Hash. It can be used to add errors to a...
Note: Making a reverse proxy with nginx is much more straightforward. A reverse proxy is a "man in the middle...
Capistrano 3 is a major rework of the framework and requires several adjustments to your deploy configuration files. The biggest...
To achieve this goal you have to setup the session store like the following example: MyApp::Application.config.session_store( :cookie_store...
Geordi 1.0 features a command line application geordi, that holds most of Geordi's previous commands. New features
Rails includes a way to see what an e-mail will look like. Integration to RSpec All you need to...
When putting phone numbers into web pages, you should use tel: links so smartphone users can click those numbers to...
You need to copy an entire website? Use wget like this: wget -kr http://host.tld/ This will fetch all content...
So you want to organize your I18n using multiple .yml files but your Rails 4.1 application simply won't use...
When your system is not running on English, you may sometimes want to run some applications and not use your...
We will be installing rbenv and ruby-build from our own fork, not from the Ubuntu sources. Installing rbenv
If you once had HTTP Strict Transport Security enabled for a domain, and you want to disable it again, you...
Use the following command to test if a server (in this example: makandra.com on port 443) uses Perfect Forward Secrecy...