Raspbian and Raspberry Pi OS (Raspberry Pi)

Just a quick blog post about my favourite mini computer, the Raspberry Pi. This morning (Thursday 28th May 2020) the Raspberry Pi Foundation announced the launch of the 8GB Raspberry Pi 4 (official news here: https://www.raspberrypi.org/blog/8gb-raspberry-pi-4-on-sale-now-at-75/) to join the year old 4GB and 2GB Raspberry Pi 4* Alongside the news of the new Pi model … Continue reading Raspbian and Raspberry Pi OS (Raspberry Pi)

Raspberry Pi MicroSD Check Using Agnostics via CLI (Raspberry Pi)

sudo apt install agnostics

Towards the beginning of March 2020 raspberrypi.org released a tool to check the speed of a microSD card being used by the Raspberry Pi. The details for this tool, called "agnostics" can be found at https://www.raspberrypi.org/blog/sd-card-speed-test/ or if you want to install the tool then use sudo apt install agnostics . You may need to … Continue reading Raspberry Pi MicroSD Check Using Agnostics via CLI (Raspberry Pi)

Using Ansible To Create And Manage Users (Linux / Raspberry Pi)

If you have multiple Linux devices (e.g. multiple Raspberry Pi computers) and multiple user accounts that need access to those devices (i.e. maybe a Code Club of pupils) and want their own user accounts on the devices it could be a lengthy process managing the accounts and devices. Which is where Ansible (https://www.ansible.com/) comes into … Continue reading Using Ansible To Create And Manage Users (Linux / Raspberry Pi)

SHA256 File Hash Values And How To Check Them (Raspberry Pi / Mac OS X / PowerShell)

Image showing SHA-256 value

Imagine that you are a software company and host an awesome free piece of software. One day your site is hacked and the download file for your software is replaced with a malicious version of the software. It might be days (or longer!) before you notice. Or what if someone is intercepting traffic and altering … Continue reading SHA256 File Hash Values And How To Check Them (Raspberry Pi / Mac OS X / PowerShell)