SPF, DMARC and DKIM: The Email Security Triad

Understanding how SPF, DMARC, and DKIM work to protect your emails from spam and phishing

Manzolo PPA (My Own Ubuntu Repository)

Manzolo PPA — My Personal Ubuntu Repository

Install my tools directly with apt!
Secure, GPG-signed repository hosted at …

Build Your Own Ubuntu Repository with Docker

Build Your Own Ubuntu Repository with Docker 📦

Ever wanted to distribute your own software packages just like Ubuntu …

Installing NVIDIA Container Toolkit

A guide to installing the NVIDIA Container Toolkit to enable GPU support for Docker containers

Docker Compose Playground

Docker Playground Manager 🐳

Introducing Docker Playground Manager, a powerful tool for managing Docker development …

APT Package Repository Management Guide

Complete guide to manage APT packages, identify repository sources, and audit installed packages on Debian/Ubuntu …

Encrypted LVM Disk Resize (LUKS + LVM)

Quick guide to resize QEMU disks with LUKS encryption and LVM partitions

QEMU/VirtualBox Disk Resize

Quick guide to resize QEMU/VirtualBox virtual disks and expand partitions

Batch Image Optimization

Quick guide to batch optimize JPEG images for web use, reducing file size while maintaining quality

LUKS Encrypted Container

Quick guide to create and use LUKS encrypted containers for secure file storage on Linux

Windows System Repair and Maintenance

Quick guide to repair corrupted Windows system files using SFC and DISM tools

SD Card Backup and Restore

Quick guide to backup and restore SD cards using dd and gzip compression

Network Traffic Analysis with tcpdump (Debian/Ubuntu)

Network Traffic Analysis with tcpdump (Debian/Ubuntu)

Introduction

tcpdump is a lightweight, command-line packet capture …

Network Traffic Analysis with Wireshark (Debian/Ubuntu)

Network Traffic Analysis with Wireshark (Debian/Ubuntu)

Introduction

Wireshark is a powerful open-source tool for …

APT and DPKG Guide (Debian/Ubuntu)

APT and DPKG Guide (Debian/Ubuntu)

Introduction

apt and dpkg are core tools for package management on Debian and Ubuntu …

Mail Server Installation and Configuration Guide (Debian/Ubuntu)

Mail Server Installation and Configuration Guide (Debian/Ubuntu)

Introduction

Setting up a complete mail server allows …

OpenVPN Server Installation and Configuration Guide (Debian/Ubuntu)

OpenVPN Server Installation and Configuration Guide (Debian/Ubuntu)

Introduction

Setting up an OpenVPN server allows …

RDP Installation and Configuration Guide (Debian/Ubuntu)

RDP Installation and Configuration Guide (Debian/Ubuntu)

Introduction

Remote Desktop Protocol (RDP) enables remote …

LVM RAID Management Guide (Debian/Ubuntu)

LVM RAID Management Guide (Debian/Ubuntu)

Introduction

Logical Volume Management (LVM) is a flexible storage management …

LUKS Disk Encryption Management Guide (Debian/Ubuntu)

LUKS Disk Encryption Management Guide (Debian/Ubuntu)

Introduction

LUKS (Linux Unified Key Setup) is a standard for …

ZFS Pool Management Guide (Debian/Ubuntu)

ZFS Pool Management Guide (Debian/Ubuntu)

Introduction

ZFS (Zettabyte File System) is an advanced filesystem and volume …

GPG Bash Playground

GPG Bash Playground Guide

Introduction

The GPG Bash Playground is an educational Bash script that demonstrates the …

Chroot Guide for Debian/Ubuntu

Chroot Guide for Debian/Ubuntu

Introduction

A chroot (change root) environment allows you to switch the root directory …

Linux Boot Repair (Debian/Ubuntu)

Linux Boot Repair Guide (Debian/Ubuntu)

Introduction

Boot issues in Debian or Ubuntu can prevent your system from …

Windows Boot Repair

Windows Boot Repair Guide

Introduction

Windows boot issues can prevent your system from starting correctly, often due to …

Wordpress backing up (files and database) and dockerizing

WordPress Management Script Usage Guide

Introduction

The wp-management script is a powerful Bash tool designed to …