Ethereum mining ended after The Merge. Learn what changed, why old mining guides are obsolete, and what realistic alternatives exist for earning or holding ETH.
Free SSL With Let’s Encrypt
Install a free Let’s Encrypt SSL certificate for Apache with Certbot, verify HTTPS, avoid common renewal problems, and understand what to do on legacy Ubuntu servers.
Testing Cloudflare on WordPress: Does It Speed Up Your Site?
A practical before-and-after workflow for testing whether Cloudflare improves WordPress performance, including curl timing, Lighthouse, cache headers, and WordPress-specific settings.
Check Authoritative DNS vs Resolver Cache with dig
Use dig to compare authoritative DNS records with public resolver cache after DNS changes.
Use journalctl to Debug a Failed systemd Service
When a Linux service fails under systemd, the fastest first move is usually not digging through random files in /var/log. Ask systemd what happened, then
Debug HTTP Redirects and Timing with curl
Use curl to follow redirects, inspect the final URL, measure DNS/TLS/TTFB timing, and spot redirect loops or slow origin responses.
Process for Starting Your First Git Project
To start your first git project, follow these steps: Create a new directory on your computer to hold the project files. Open a terminal window
Vowpal Wabbit – Quick Start Tutorial
Vowpal Wabbit is a popular open-source machine learning library that allows users to quickly and easily build predictive models using large datasets. This tutorial will
How to Insert Multiple Rows with MySQL (insert shortcut)
Below is an example how to insert multiple values/rows into a table using a single insert statement shortcut. Versus individually listing out each insert statement
Find Directory Sizes in a Folder
Finding the recursive sizes of folders and their contents in summary is easy with the disk usage (du) command. Output will look something like this.
