$ All Tutorials
Comprehensive guides for system administrators. No fluff, just practical solutions.
43 tutorials found
Backup Mailcow to S3
Automatically back up Mailcow mail data and configuration to Amazon S3.
Backup WordPress to S3
Back up your entire WordPress site — files and database — to Amazon S3 automatically.
Bash Scripting Essentials
Write robust bash scripts for automation and system administration.
Claude Prompting Guide
A practical reference for crafting effective prompts with Claude (Anthropic). Focused on sysadmin, IT ops, and scripting use cases.
Configure Firewall
Configure UFW and iptables to control inbound and outbound traffic on Linux.
Cron Jobs & Scheduling
Schedule recurring tasks with cron and understand crontab syntax and management.
Disk Management
Partition disks, create filesystems, mount drives, and manage storage on Linux.
Docker on Linux
Install Docker, manage containers, images, and use Docker Compose on Linux.
Editing Wix Sites with Lovable
Use Lovable AI to design and edit Wix website content without manual drag-and-drop.
Enable GZIP Compression
Enable GZIP compression in NGINX or Apache to reduce page load times and bandwidth.
GPT for Code Review
Use ChatGPT to review code, spot bugs, and suggest improvements.
GPT for Documentation
Use AI to generate clear, consistent technical documentation from your notes.
GPT for Sysadmin Automation
Automate repetitive sysadmin tasks using AI-generated scripts and playbooks.
GPT for Troubleshooting
Speed up Linux and application troubleshooting with structured AI prompts.
GPT Prompt Hacks
Get better results from ChatGPT with prompt engineering techniques.
GPT Prompting Guide
A practical guide to getting the most out of ChatGPT and the OpenAI API — including GPT-4o, o1, and custom instructions. Focused on IT ops and sysadmin workflows.
GPT-Generated Bash Scripts
Use ChatGPT to write, debug, and refine Bash scripts faster.
Hardening Mailcow Security
Lock down your Mailcow server against spam, brute-force, and unauthorized access.
Install NGINX
Install and configure NGINX as a web server or reverse proxy on Ubuntu.
Install WordPress
Install WordPress on Ubuntu with NGINX, PHP, and MariaDB from scratch.
Let's Encrypt SSL
Obtain and auto-renew free SSL certificates from Let's Encrypt using Certbot.
Linux Command Basics
Master essential Linux terminal commands for navigating, managing files, and running processes.
Linux File Permissions
Understand and manage Linux file permissions, ownership, and special permission bits.
Linux Gaming in 2026
Run modern games on Linux with Proton, Steam, Lutris, and native titles.
Linux Networking Guide
Configure networking, troubleshoot connectivity, and manage interfaces on Linux.
Linux System Maintenance
Keep your Linux server healthy with these essential maintenance tasks every sysadmin should run regularly.
Mailcow Anti-Spam Tuning
Tune Mailcow's Rspamd anti-spam engine to reduce false positives and catch more spam.
Mailcow Server Migration
Migrate a Mailcow mail server to a new host with minimal downtime.
Mailcow Setup & Usage
Deploy a full-featured self-hosted mail server with Mailcow on Docker.
Monitor Mailcow with Prometheus
Monitor Mailcow container health, mail queues, and spam stats with Prometheus.
MySQL Setup
Install and configure MySQL or MariaDB on Ubuntu for web applications.
MySQL User & Permissions
Manage MySQL user accounts, roles, and fine-grained permissions.
NIST Cybersecurity Framework
Apply the NIST Cybersecurity Framework (CSF) to build and measure your organization's security posture.
ownCloud File Storage
Set up ownCloud on Ubuntu with NGINX and MariaDB for self-hosted file storage and sharing.
Perplexity Prompting Guide
A practical guide to using Perplexity AI for real-time research, documentation lookup, and sysadmin investigations. Unlike ChatGPT or Claude, Perplexity searches the live web and cites sources.
Process Management
Monitor, control, and manage running processes on Linux using ps, top, kill, and systemd.
Professor Messer's CompTIA
Study resources and practice exam links for CompTIA certifications via Professor Messer.
Speed Up WordPress with WP Rocket
Speed up a WordPress site with WP Rocket caching, preloading, and CDN integration.
SSH Keys
Generate SSH key pairs, manage authorized keys, and use SSH agent for secure access.
Sync WordPress to GitLab
Sync your WordPress theme and plugin files to a private GitLab repository.
Top 100 Linux Commands
Essential Linux commands every sysadmin should know. Organized by category for quick reference.
Ubuntu Server Setup
Harden and configure a fresh Ubuntu 20.04+ server from first login to production-ready state.
Update & Upgrade Mailcow
Keep your Mailcow Docker stack up to date and roll back if needed.
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