$ All Tutorials
Comprehensive guides for system administrators. No fluff, just practical solutions.
44 tutorials found
Backup Mailcow to S3
Automate daily Mailcow backups to Amazon S3 for off-site protection.
Backup WordPress to S3
Automate daily WordPress backups to Amazon S3 for reliable off-site disaster recovery.
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
Set up a secure firewall with UFW on Ubuntu to protect your server.
Cron Jobs & Scheduling
Automate tasks with cron jobs and systemd timers for efficient server management.
Disk Management
Partition, format, and manage disk storage on Linux servers effectively.
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 iterate on web projects faster — and understand how it compares to Wix.
Enable GZIP Compression
Speed up your WordPress sites by enabling GZIP compression on NGINX.
GPT for Code Review
Use AI to review, audit, and improve your infrastructure code — configs, scripts, and IaC.
GPT for Documentation
Auto-generate runbooks, READMEs, and internal docs with AI — and actually keep them updated.
GPT for Sysadmin Automation
Use ChatGPT and LLMs to automate repetitive sysadmin tasks — cron jobs, alerting, and IaC generation.
GPT for Troubleshooting
Use AI to diagnose and resolve server and application issues faster — cut MTTR in half.
GPT Prompt Hacks
Advanced prompting techniques to get better, more reliable results from AI tools for sysadmin work.
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
Prompt engineering techniques for generating reliable, production-safe bash scripts with AI.
Hardening Mailcow Security
Lock down your Mailcow server with TLS hardening, fail2ban, and firewall rules.
Install NGINX
How to install and configure NGINX on Ubuntu 24.04 for optimal performance.
Install WordPress
Complete guide to installing WordPress on Ubuntu with NGINX and Let's Encrypt SSL.
IP Subnet Calculator
Interactive IPv4 subnet calculator for sysadmins and network engineers. Enter any IP address with CIDR notation or subnet mask to instantly calculate network address, broadcast address, usable host range, wildcard mask, IP class, and binary representation. No external requests — all calculations run in your browser.
Let's Encrypt SSL
Secure your NGINX server with free SSL certificates from Let's Encrypt.
Linux Command Basics
Essential Linux commands every administrator needs to know for daily operations.
Linux File Permissions
Master chmod and chown commands to control file access and ownership on Linux.
Linux Gaming in 2026
Set up and optimize Linux for gaming — drivers, Proton, Steam, and performance tweaks.
Linux Networking Guide
Configure interfaces, routes, DNS, and troubleshoot network issues on Linux.
Linux System Maintenance
Keep your Linux server healthy with regular maintenance tasks every sysadmin should know.
Mailcow Anti-Spam Tuning
Tune Rspamd and greylisting to reduce spam on your Mailcow mail server.
Mailcow Server Migration
Migrate your Mailcow instance to a new server with minimal downtime.
Mailcow Setup & Usage
Deploy a full-featured self-hosted mail server with Mailcow on Docker.
Monitor Mailcow with Prometheus
Set up Prometheus and Grafana to monitor your Mailcow server health and mail metrics.
MySQL Setup
How to install and configure MySQL database server on Ubuntu 20.04.
MySQL User & Permissions
How to create a new MySQL user and grant permissions for secure database access.
NIST Cybersecurity Framework
NIST CSF 2.0 — global standard for cyber risk.
ownCloud File Storage
How to set up ownCloud for self-hosted file storage and syncing on Ubuntu.
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
Control services with systemctl and systemd for reliable process management.
Professor Messer's CompTIA
Free CompTIA certification study resources from Professor Messer — and how to use them effectively.
Speed Up WordPress with WP Rocket
Configure WP Rocket for maximum WordPress speed — caching, minification, lazy load, and CDN.
SSH Keys
Set up SSH key authentication on Ubuntu for secure, passwordless login.
Sync WordPress to GitLab
Version control your WordPress theme and plugins with GitLab, with optional CI/CD deployment.
Top 100 Linux Commands
Essential Linux commands every sysadmin should know. Organized by category for quick reference.
Ubuntu Server Setup
Initial server hardening on Ubuntu 20.04+.
Update & Upgrade Mailcow
Keep your Mailcow installation current with safe, zero-downtime update procedures.
No tutorials found matching your criteria.