Your LAN topology and tools for mapping devices and links
Discover how to map your LAN topology and the best tools to view devices and links clearly and in real time.
Lorena Figueredo 
Lorena Figueredo 
How to design and run driver tests like a pro
Learn to design and run driver tests with TDD, automation, and performance, like a true professional.
Lorena Figueredo 
Restrict password attempts in Linux to secure SSH and services
Learn how to limit password attempts on Linux, configure SSH and Fail2ban, and protect your services against brute-force attacks.
Lorena Figueredo 
How to set up a virtual lab at home for networking and security
A step-by-step guide to setting up a virtual home lab for networking and cybersecurity, with VMs, pfSense, and pentesting tools.
Lorena Figueredo 
How to document an IT infrastructure with professional templates
Learn how to document your IT infrastructure with professional templates: SLAs, HA, roadmaps, and security explained clearly and practically.
Lorena Figueredo 
Recovering a Linux system that won't boot: a complete guide
Learn how to recover a Linux system that won't boot: GRUB, fsck, rescue modes, and Live distros to save your system without formatting.
Lorena Figueredo 
Recovery options in macOS and when to use each one
Discover all the recovery options in macOS and learn when to use each one to repair, reinstall, or rescue your Mac without surprises.
Lorena Figueredo 
How to create a bootable drive from macOS step by step
Learn how to create a bootable macOS USB drive step by step to easily install, reinstall, or repair your Mac.
Lorena Figueredo 
Methods to turn off the RGB lights on a gaming PC
Complete guide to turning off the RGB lights on your gaming PC using software, BIOS or hardware and leaving your computer in the dark without losing performance.
Lorena Figueredo 
How to validate and use ISOs in macOS step by step
Learn how to open, create, and validate ISOs on macOS, convert .cdr to ISO, and prepare installers or exact disk copies step by step.
Lorena Figueredo 
PWM vs DC Fan: Real Differences and Which One Should You Choose?
PWM vs DC Fan: Discover the real differences, noise, control, and compatibility to choose the best fans for your PC.
Lorena Figueredo