There is a new card about how to do this with the new AWS Command Line Interface

Most likely you run rake and your code is causing an exception which is not the one shown in your...

whatsmydns.net is an online service that allows you to instantly perform a DNS lookup to check a hostnames current IP...

When installing your first formula, Homebrew may complain about not being able to access certain directories. The easiest solution to...

cURL makes a web request and shows you the response body. You can redirect the response body to /dev/null just...

Consider you have a website vhost listening to www.example.com, redirecting all incoming requests that do not talk about the configured...

Simple: Tell the application controller how to handle exceptions, here a RecordNotFound error. Do this with the following line: # application_controller.rb...

Ever wondered how Rails talks to itself in a Cucumber feature? In Rails 3 you can do it like this...

Do you have page caching enabled for the development environment and there are cached pages lying around in public/?

I believe that when WEBrick has trouble bringing up your Rails application, the WEBrick component that is supposed to print...

If you have any class which requires access to some path methods generated by your routes. Even though you could...

While it might seem trivial to implement an invoice that sums up items and shows net, gross and vat totals...

You've been there: A form cannot be submitted, but you don't see a validation error because the field...

Note that if you plan to freeze your Firefox versions because your Selenium tests break whenever Firefox updates, there is...

Sometimes the Rails helper #distance_of_time_in_words is using too much magic. When you need a time difference...

Consider this HTML: Even though the surrounding container defines a line-height, which vertically centers its inline elements, the check...

When the Ruby parser module of Ruby-GetText comes across a file in one of its search directories (e.g. lib/scripts...

Do you wonder which databases are actually taking up how much space but only have one huge ibdata1 in your...

If you want to use the (badly implemented!) solarized color scheme in your Rubymine IDE: Clone the IntelliJ IDEA port...

This article from the FreeBSD Handbook suggests that editing /etc/rc.conf enables DHCP. Unfortunately, some times this seems not sufficient.

Date::Performance is a gem that replaces various method in Ruby's Date class with fast C implementations. Unfortunately it...

Detecting if a Javascript is running under Selenium WebDriver is super-painful. It's much easier to detect the current...