Automate SSL Certificates with Let's Encrypt and Certbot
Automate free SSL/TLS certificates using Let's Encrypt and Certbot for Nginx and Apache. Includes auto-renewal setup and wildcard certificates.
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View all →Cloudflare Tunnels: Expose Local Services Without Port Forwarding
Set up Cloudflare Tunnels to securely expose your self-hosted services to the internet without opening ports or configuring NAT on your router.
Docker Compose: A Practical Guide for System Administrators
Learn Docker Compose for managing multi-container applications. Covers docker-compose.yml syntax, networking, volumes, environment variables, and production tips.
Getting Started with GitHub Actions for CI/CD
Learn GitHub Actions from scratch: create workflows for testing, building, and deploying your applications automatically on every push or pull request.
How to Install Docker on Ubuntu 22.04 and 24.04
Step-by-step guide to install Docker Engine and Docker Compose on Ubuntu 22.04/24.04 with post-installation setup and verification.
Linux Server Security Checklist: 20 Essential Steps
A comprehensive 20-step security checklist for Linux servers covering updates, SSH, firewall, user management, auditing, and intrusion detection.
Introduction to Terraform: Infrastructure as Code for Beginners
Learn Terraform basics: providers, resources, variables, outputs, state management, and your first infrastructure deployment with practical examples.
Nginx Reverse Proxy: The Complete Configuration Guide
Master Nginx as a reverse proxy: configuration examples for proxying to backend apps, WebSocket support, SSL termination, load balancing, and caching.
PowerShell 7: What's New and Why Windows Admins Should Upgrade
Discover PowerShell 7 features: cross-platform support, pipeline parallelization, ternary operators, null-coalescing, and how to migrate from Windows PowerShell 5.1.
Migrating from WordPress to Astro: A Complete Guide
A comprehensive guide to migrating your WordPress blog to Astro, including content export, markdown conversion, URL preservation, and Cloudflare Pages deployment.
SSH Hardening: 12 Steps to Secure Your Linux Server
Harden SSH on your Linux server with these 12 security best practices: key-based auth, fail2ban, port changes, 2FA, and more.
How to Set Up a WireGuard VPN Server on Ubuntu
Complete guide to setting up a WireGuard VPN server on Ubuntu with client configuration for Linux, Windows, macOS, and mobile devices.