Let's Encrypt, nginx and Ruby on Rails
Let's Encrypt are currently in closed beta but you can apply to get your domains whitelisted here. After receiving the confirmation email that the domains are whitelisted we can get started...
Using adb with Wileyfox Swift/Swift2/Swift2 plus
If you've got one of the nice new Wileyfox Android smartphones then of course you'll want to use the Android debugger with it. This should be easy, and in the end, it is. However, there is...
How to get the path to the current script in bash
It's sometimes useful to be able to get the absolute path to the current script in bash: SCRIPT_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
How to add internal PDF links inside a table using Prawn and Prawn table
On a recent project we needed to generate a PDF using Prawn. The PDF has links from a list of contents into a table. The normal way (when not using a table) for adding internal links is to do the...
An easy way to send UDP packets in Linux
Bash gives us a very simple way of sending a UDP packet to an IP address and port: echo "This is my data" /dev/udp/127.0.0.1/3000 This example will send a UDP packet containing 'This is my data'...