Pablo González

How my server started as a book library with Calibre and Kavita, then grew into a full media homelab with Jellyfin, Arr automation, a reverse proxy, and operations tooling — one folder per service, all in Docker Compose.

A guide to setting up a static website using Hugo with a domain from Namecheap, Cloudflare DNS, Cloudflare Pages, and Umami for analytics.

A comparison between microservices and monolithic architectures.

Software Development Best Practices including Agile, DevOps, CI/CD, TDD, BDD, DDD, Clean Code, SOLID, Design Patterns, Refactoring, Code Smells, Code Review, Pair Programming, Mob Programming, etc.

How to setup Wireguard server and client the easy way.

Beginner-friendly cryptocurrency notes covering risk management, strategy basics, and practical lessons learned.

Today there are numerous attack strategies and patterns: ramsonware,DDoS, rootkits, cryptomining programs, botnets... including physical attacks.

Step-by-step Linux email server setup with Postfix, Dovecot, and Roundcube, including installation, configuration, and security basics.

Practical Apache web server guide covering installation, core configuration, virtual hosts, TLS basics, and hardening on Linux.

In this post I'll explain with detail how Unix uses *initd* or *systemd* to manage the boot/shutdown process: runlevels, targets, and how to run a script/program at certain points like boot or shutdown.

Quotas are necessary as in a multi-user system limits allow to distribute space to each user.

A backup or backup is the safe copy of a digital file, a set of files, or all of the data considered important enough to be preserved.

System auditing allows to save information in logs about different interactions of the system (like crashes, logins, reports of services, etc.) and use to investigate incidents on the system.

Systems Monitoring is in charge of continuously monitoring different resources and services of the computer, to guarantee the required level of availability and alert administrators in case of failure.

Linux filesystem fundamentals: inodes, directory hierarchy, partitions, and essential commands for navigating and managing storage.

BadUSB with a cheap Arduino DigiSpark!

Fail2ban scans log files and bans IPs that show the malicious signs (too many password failures, seeking for exploits, etc).

Installing an SSH server can be very useful to manage your files from outside home and knowing it encrypts the traffic one can remain relieved that the data is secure.

Doing advanced searches with the use of Google Operators nowadays is a must to be able to extend and improve our findings.

Curated Bash aliases to speed up daily Linux workflows, reduce repetitive commands, and improve terminal productivity.

Markdown cheatsheet with practical syntax examples for headings, links, tables, code blocks, and everyday technical writing workflows.

Guide to downloading video streams from m3u8 playlists using VLC and command-line methods, with troubleshooting for segmented media.

Data exfiltration techniques and command patterns used in post-exploitation to collect files, credentials, and sensitive host information.

Introduction to 125 KHz low-frequency RFID basics, attack surface, and practical cloning/testing notes for common access-control tags.

Practical 13.56 MHz RFID overview covering common card technologies, attack surface, and cloning/testing techniques for NFC access systems.

Rogue Access Point walkthrough covering fake hotspot setup, credential-capture flow, and practical wireless MITM testing considerations.

Bash scripting cheatsheet with common syntax, conditionals, loops, functions, and command-line patterns for quick shell automation tasks.

Pentest cheatsheet with practical post-exploitation and privilege-escalation techniques, including TTY upgrades, shell escapes, and Linux escalation paths.

Port pentesting cheatsheet for common services, with quick enumeration and exploitation tips for FTP, SSH, web, SMB, DNS, and database targets.