Steps to safely remove Linux kernels (Ubuntu)

Note: Please understand, these instructions can make your system non-bootable. If you’re unsure, do not continue. If you’re trying to update the kernel and low/empty disk space errors are shown, it’s probably because the /boot/ directory is full. Use this command to see the available space of /boot/: sudo df -h Now check the kernel […]

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Test your system for Spectre and Meltdown vulnerabilities

Following the outbreak of three processor vulnerabilities, known as Spectre and Meltdown; I have already patched my systems and whilst doing so, came across this useful script written by Speed47. This script checks your system for the three vulnerabilities. I found it useful to check my systems were secure after applying kernel updates. To run […]

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PHP: Finding a multi-dimensional array key’s associated value

I thought I would share this simple PHP function to hopefully help anyone needing a quick solution. Imagine, you have a multi-dimensional array such as this: <?php //Example array $array = array( ‘test’ => array( ‘name’ => ‘John Doe’, ’email’ => ‘john@example.com’ ) ); ?> And you need to extract a specific bit of data, […]

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