$ All Tutorials
Comprehensive guides for system administrators. No fluff, just practical solutions.
38 tutorials found
Backup Mailcow to Amazon S3
Automate off-site backups of your mailcow installation to Amazon S3 — encrypted, scheduled, and easy to restore.
Backup WordPress to Amazon S3
Automate off-site backups of your WordPress site to Amazon S3 — database, uploads, themes, and plugins.
Bash Scripting Essentials
Master shell scripting to automate tasks, manage servers, and build powerful CLI tools.
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, configure, and master Docker containers on Linux for dev and production workloads.
Editing Wix Sites with Lovable
Use Lovable to prototype and generate components you can embed into Wix — via HTML embeds, Velo, iframes, or Blocks.
Enable GZIP Compression
Speed up your WordPress sites by enabling GZIP compression on NGINX.
GPT for Code Review
Use GPT as your personal code reviewer — catch bugs, security flaws, and performance issues.
GPT for Documentation
Generate READMEs, runbooks, API docs, and architecture documentation with GPT.
GPT for Sysadmin Automation
Use GPT to generate cron jobs, monitoring alerts, config files, and infrastructure-as-code.
GPT for Troubleshooting
Turn cryptic error messages into instant fixes — diagnose server issues and resolve outages faster.
GPT Prompt Hacks
Simple prompt engineering tricks that dramatically improve GPT output for sysadmins and developers.
GPT-Generated Bash Scripts
Ready-to-use bash scripts created with GPT — server monitoring, backups, log analysis, and more.
Hardening Mailcow Security
Deep dive into SPF, DKIM, DMARC configuration and TLS hardening — stop spoofing and encrypt everything.
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.
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
Why 2026 is the year of the Linux gamer - Proton, performance gains, and the Windows 10 exodus.
Linux Networking Guide
Master network configuration, troubleshooting, and security on Linux systems.
Linux System Maintenance
Essential commands to keep your Linux system tidy and fast - cleanup, logs, and optimization.
Mailcow Anti-Spam Tuning
Fine-tune Rspamd rules, configure greylisting, manage blocklists, and dramatically reduce spam.
Mailcow Server Migration
Move your entire mailcow installation to a new server with zero downtime — mail, databases, and DKIM keys intact.
Mailcow Setup & Usage
Deploy a full-featured Dockerized mail server with mailcow — webmail, anti-spam, DKIM, and admin dashboard.
Monitor Mailcow with Prometheus & Grafana
Set up real-time dashboards for your mailcow server — track queues, delivery rates, container health, and alerting.
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
Understanding NIST CSF 2.0 - the global standard for managing cyber risk with six core functions.
ownCloud File Storage
How to set up ownCloud for self-hosted file storage and syncing on Ubuntu.
Process Management
Control services with systemctl and systemd for reliable process management.
Speed Up WordPress with WP Rocket
Configure WP Rocket for maximum performance — page caching, file optimization, lazy loading, and CDN integration on NGINX.
SSH Keys
Set up SSH key authentication on Ubuntu for secure, passwordless login.
Sync WordPress to GitLab
Put your WordPress theme under version control with GitLab — track changes, branch safely, and deploy with CI/CD.
Ubuntu Server Setup
Initial server setup with Ubuntu 20.04 - essential first steps for a secure server.
Update & Upgrade Mailcow
Keep your mailcow installation secure — routine updates, major upgrades, rollbacks, and troubleshooting.
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