Starting with Rails 4.0, when you get an exception reported via the ExceptionNotification gem, you will only see a very...
When working with PostgreSQL, you can use pgAdmin as a GUI. While you can do most things just like on...
Article shows how to make a script that fakes one kind of content when printed with cat, but uses different...
As the web is being used for more and more tasks, expectations rise. Not only should web pages offer rich...
This is how you regain disk space from OpenStack instances if you are using kvm and qcow. If your instance...
PhantomJS has no binary builds for Linux, and building it yourself is painful. However, you can install it through npm...
I recommend install Node.js using nvm. This way you can have multiple Node versions in your ~/.nvm. You also won...
To update your Rubygems to the latest available version, type the following: gem update --system Note that you have a...
Unfortunately, Web APIs haven’t provided the functionality to copy text to the clipboard through JavaScript, which is why visiting...
Spreewald comes with a selector_for helper that matches an English term like the user's profile into a CSS...
If you need a postgresql extension for your database it isn't a good idea to give your applications database...
Each time thin boots, it prints a boot message : Thin web server (v1.6.3 codename Protein Powder) Maximum connections set to...
tig is a command line explorer for Git that is just awesome. Install via apt-get or brew. Handy commands...
Here is how to start your Rails application to accept both HTTP and HTTPS in development. gem install passenger
CTRL + SHIFT + ALT + N Search for any symbol in your application, like CSS classes, Ruby classes, methods, helpers etc...
To change RAM size, VDISK size or VCPU count of an openstack instance you have to use nova resize. You...
If you see a stacktrace beginning with lines like this: E, [2015-07-16T09:23:10.896146 #23308] ERROR -- : app...
Large projects usually have large test suites that can run for a long time. This can be annoying as running...
If you need to follow links, click buttons, etc. using Capybara inside an , you can do it like this:
Note: Making a reverse proxy with nginx is much more straightforward. A reverse proxy is a "man in the middle...
sslscan is a nice tool to show details about TLS/SSL connections: ~> sslscan some-host-at.makandra.de Testing SSL server some-host-at.makandra.de on port 443...
Capistrano 3 is a major rework of the framework and requires several adjustments to your deploy configuration files. The biggest...
When using Savon to connect a SOAP API, you may want to use Savon::SpecHelper to mock requests in your...
After adding a vdisk to an ESXi linux guest you will assert that you can't find a new device...