Having worked in numerous organisations where PII data is vitally important, especially in the era of GDPR, I’ve seen first hand many implementations of Encryption and Hashing. Yet in this time, I’ve very often experienced people using the terms interchangeably, or incorrectly. Therefore I aim here to help demystify some Read more…
First you need to alter your startup script. On Linux and older Mac OSs this is ~/.bashrc, however on Mac OS Catalina this may be ~/.zshrc. Open the aformentioned file with a text editor and add this line: Then create a file in your home directory ~/.mycommands.sh with this inside: Read more…
Here’s a quick one regarding deleting all untagged docker images. This occurred when docker image prune wasn’t deleting all the unused images I had. A bit of googling found this wrong command: Amazingly, this command was on a bunch of Stack Overflow posts and various blogs, yet for me the Read more…
What better feature for the background in your new YouTube videos than a live updating subscriber counter? Well now you can build one for just a few dollars/pounds! Video Guide: Grab your hardware: MATRIX Display Raspberry Pi 4 or cheaper Raspberry Pi 3 Connect It Up: Steps: Connect to your Read more…
Thinking of learning to code in 2020? Watch this video from Devscover’s Wayne about the best ways to learn Liked the video? To keep learning, don’t forget to subscribe!
Lets take 3 of the top languages and look if they are pass-by-value or pass-by-reference Javascript This produces: If this was proper pass by reference, num would equal 100 Therefore we know it’s pass by value. However if we look closer, we can see that value is a reference. We Read more…
So you’ve created an EC2 but not given it enough storage. Now you’ve run out and are wondering how you change it. Here’s how you do it. First SSH into your EC2 (Make sure your security groups are set that you can access port 22, you have the SSH Keys Read more…
Here’s a quick video I made showing how you can track bitcoin prices with your very own ticker board. Requirements below You will need: Knowledge of Python 4 8×8 segment displays Netduino/Arduino Raspberry Pi Some cables & a breadboard A PC to write the code
So you have an ECS cluster running with an image on ECR. Want to update the image that cluster is running via the CLI? Here’s how you do it: First build your docker file locally Tag your built image for your repo Push your updated docker image to ECR If Read more…
Ever had trouble writing an .img file to an SD card for your Raspberry Pi? Here’s how to do it without installing any other programs. Download Your Image Firstly, you need to download the latest image that you want to write. I personally like to use the full Raspbian image. Read more…