How to secure your Raspberry Pi
The Raspberry Pi and many other inexpensive computer boards like it have become part of the "Internet of Things" or IoT revolution. Internet-connected computing devices have emerged beyond traditional servers, desktops, laptops, and mobile devices. Now your TV, DVR (digital video recorder), thermostat, refrigerator, Internet radio, Raspberry Pi, and other devices are on the network too.
IoT has been huge for experimentation and innovation. But as projects get rushed to completion, there have been severe consequences for ignoring security. And this applies both to commercial products and hobby projects. I'll talk about the Raspberry Pi specifically in this article, so this post is oriented more toward do-it-yourself projects.