Category: Learnings

nnn: The Fastest Way to Browse Files (and Preview Images) From Your Terminal

A beginner’s guide to installing and using nnn on Fedora — plus how it compares to ranger and feh. Ever opened a graphical file manager just to glance at a folder of screenshots, and watched it take three full seconds to load? Terminal users solved this problem years ago. The tool many of them reach for is nnn — a file manager so small it starts in milliseconds, yet powerful enough to preview images, play music, and extract archives without ever touching a mouse.

This guide covers what nnn is, why it beats the alternatives for most people, how to install and use it on Fedora, and where nnn fits next to two other tools you’ll hear about constantly in this space: ranger and feh.

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How Consulting and Taking Online Courses Inspired – Deliberate Learners –

In one, I was an independent IT consultant — building web storefronts, small mobile apps, and social media strategies for local businesses, then teaching those clients how to actually run the tools once I handed them over. In the other, I was a student of everything. Coursera tabs. Udacity nanodegrees. A half-watched lecture paused at 12:04 for three weeks. A specialization I’d paid for and opened twice.

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SEO: Search Engine Optimization

If you just launched a WordPress site — or inherited one that’s never been properly configured for search — this guide walks through every step needed to get Google to find it, understand it, and rank it fairly. It’s written as a checklist you can work through top to bottom, but each item includes the *why*, the *how*, and the mistakes that trip people up.

This is the general-purpose version of the playbook. It assumes a WordPress site with Yoast SEO installed, but the underlying principles (canonical URLs, verified ownership, a clean sitemap, and healthy Core Web Vitals) apply to any CMS on any host.

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How to Mount an External Hard Drive on Linux

On Windows, plugging in a drive gives it a letter like E:\ automatically. Linux doesn’t — it makes you mount the drive, which just means: attach the drive’s contents to a folder on your filesystem.

Picture your Linux filesystem as one big tree starting at /. An unmounted drive is a box sitting on the floor, not connected to anything. Mounting grafts that box’s contents onto a folder — a mount point — so that opening the folder means you’re looking inside the drive.

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Knowledge Management: Building a Second Brain with PARA

Do you ever feel like your head is stuffed with unfinished ideas, half-read articles, and an overwhelming sense that you’re forgetting something crucial? In our hyper-connected world, information overload is the new normal, leading to “Information Exhaustion” and mental fatigue. The good news is you don’t have to rely solely on your biological brain to keep it all straight. It’s time to outsource the job of remembering to technology and build what many are calling a Second Brain. The Core Idea: Building a Second Brain (BASB) The Building a Second Brain (BASB) methodology, developed by Tiago Forte, is a systematic approach to organizing your digital life, dramatically increasing your productivity, and unlocking your creative potential. The philosophy is simple yet revolutionary: Your biological brain is for thinking and creating, not for storing every single piece of data. BASB advocates for an external, growing body of knowledge that ensures you have

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Importance of Note-Taking in Cybersecurity

Information overload is the silent adversary of most cybersecurity professionals. Having an unrelenting flood of information like compliance updates, threat intelligence, vulnerability reports, and evolving security frameworks can be overwhelming. While staying informed is essential, forgetting critical knowledge isn’t just inefficient—it’s dangerous. In cybersecurity, information is your most powerful asset—whether you’re defending against threats or testing systems for vulnerabilities. New attack vectors emerge daily, zero-day vulnerabilities surface without warning, and security standards evolve at breakneck speed. For defensive teams, this means staying current with threat intelligence and incident response procedures. For offensive security professionals—penetration testers, red teamers, and security researchers—it means systematically tracking attack methodologies, documenting exploitation techniques, and building comprehensive assessments that evolve throughout an engagement. Penetration testers face unique information management challenges: cataloging every attack vector attempted, preserving technical details for future reference, maintaining detailed evidence chains, and gradually building the comprehensive reports that clients depend on for

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