iptables is the traditional Linux packet filtering framework. While UFW provides a simplified interface, understanding iptables directly is valuable for advanced firewall rules, NAT, port forwarding, and Docker networking. This guide configures iptables on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with sudo privileges Basic networking […]
Vagrant is a tool for building and managing virtual machine environments. Combined with VirtualBox as the hypervisor, Vagrant lets developers spin up reproducible development environments from a simple Vagrantfile configuration. This guide installs Vagrant and VirtualBox on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS (desktop or server with […]
Flask is a lightweight Python web microframework. This guide deploys a Flask application in production on Ubuntu 24.04 LTS using Gunicorn as the WSGI server and Nginx as the reverse proxy. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Python 3.12 and pip installed Nginx installed Step 1 – Set Up […]
SonarQube is an open-source platform for continuous inspection of code quality. It detects bugs, security vulnerabilities, and code smells across 30+ programming languages. This guide installs SonarQube Community Edition on Ubuntu 26.04 LTS with PostgreSQL. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with at least 2 GB RAM and 2 CPUs […]
Gitea is a lightweight, self-hosted Git service written in Go. It provides a GitHub-like interface with repositories, issues, pull requests, and actions CI/CD, but runs on minimal hardware. This guide installs Gitea on Ubuntu 26.04 LTS with Nginx and a PostgreSQL database. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx […]
GitHub Actions self-hosted runners allow you to run CI/CD workflows on your own hardware, giving you full control over the environment, installed tools, network access, and compute resources. This guide registers and configures a GitHub Actions self-hosted runner on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A GitHub […]
Django is a high-level Python web framework with a batteries-included philosophy. This guide deploys a Django application in production on Ubuntu 24.04 LTS using Gunicorn as the WSGI server and Nginx as the reverse proxy. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Python 3.12 and pip installed Nginx installed A […]
kubeadm is the official tool for bootstrapping a production-ready Kubernetes cluster. It automates the complex setup of the control plane and worker nodes. This guide installs a single-node Kubernetes cluster using kubeadm on Ubuntu 26.04 LTS — ideal for learning or as a foundation for a multi-node cluster. Tested and valid on: Ubuntu 26.04 LTS […]
Docker networking enables containers to communicate with each other, the host, and external networks. Docker provides several network drivers: bridge, host, overlay, macvlan, and none. Understanding these is essential for secure and efficient container deployments. This guide configures Docker networking on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]
Deno 2 is a secure runtime for JavaScript and TypeScript built on V8 and Rust. Unlike Node.js, Deno has built-in TypeScript support, a permission-based security model, and a standard library without npm being required. Deno 2 introduces npm compatibility and improved backwards compatibility. This guide installs Deno 2 on Ubuntu 26.04 LTS. Tested and valid […]
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