homelab-optimized/docs/getting-started/prerequisites.md

📋 Prerequisites & Requirements

🟢 Beginner-Friendly Guide

Before diving into homelab services, let's make sure you have everything you need. This guide covers both the technical requirements and the knowledge you'll need to be successful.

🎯 Skill Level Assessment

🟢 Absolute Beginner ("What is a computer?")

What you need to know:

• How to use a computer and web browser
• Basic understanding that computers can run programs
• Willingness to follow step-by-step instructions
• Patience when things don't work the first time

Recommended starting point:

• Start with What is a Homelab?
• Follow the Quick Start Guide
• Begin with 1-2 simple services

🟡 Intermediate (Some technical experience)

What you should know:

• Basic command line usage (cd, ls, mkdir)
• Understanding of files, directories, and permissions
• Familiarity with web browsers and URLs
• Basic networking concepts (IP addresses, ports)

Recommended starting point:

• Review Architecture Overview
• Explore Service Categories
• Try deploying 5-10 services

🔴 Advanced (IT professional/enthusiast)

What you should know:

• Docker and REDACTED_APP_PASSWORD concepts
• Linux system administration
• Networking and security principles
• Infrastructure as Code concepts

Recommended starting point:

• Dive into Deployment Guide
• Explore Advanced Topics
• Consider the full infrastructure

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💻 Hardware Requirements

🏠 Minimum Setup ($100-500)

Perfect for beginners and basic services.

Option 1: Raspberry Pi

• Device: Raspberry Pi 4 (4GB RAM minimum)
• Storage: 64GB microSD + 1TB USB SSD
• Network: Ethernet connection
• Power: Official Pi power supply
• Services: 5-10 lightweight services

Option 2: Old Laptop/Desktop

• CPU: Any dual-core processor from last 10 years
• RAM: 4GB minimum, 8GB recommended
• Storage: 100GB available space
• Network: Ethernet or stable WiFi
• OS: Ubuntu, Debian, or similar Linux

🏢 Intermediate Setup ($500-2000)

Good for most homelab enthusiasts.

Option 1: Mini PC (Intel NUC, etc.)

• CPU: Intel i5 or AMD Ryzen 5
• RAM: 16GB DDR4
• Storage: 512GB NVMe SSD + 2TB HDD
• Network: Gigabit Ethernet
• Services: 20-50 services

Option 2: Synology NAS

• Model: DS920+ or similar 4-bay
• RAM: 8GB (upgraded from 4GB)
• Storage: 4x 4TB WD Red drives
• Network: Gigabit Ethernet
• Services: 30-60 services

🏭 Advanced Setup ($2000+)

For serious homelabbers and learning environments.

Server Hardware

• CPU: Intel Xeon or AMD EPYC
• RAM: 32GB+ ECC memory
• Storage: Multiple SSDs + HDDs in RAID
• Network: 10 Gigabit Ethernet
• Redundancy: UPS, multiple hosts
• Services: 100+ services

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🌐 Network Requirements

🔌 Basic Networking

Essential:

• Internet connection: Stable broadband (25+ Mbps)
• Router: Any modern router with Ethernet ports
• Ethernet cable: Cat5e or Cat6 for server connection
• Local network: 192.168.x.x or 10.x.x.x range

Recommended:

• Gigabit network: For better performance
• Static IP: For your server (or DHCP reservation)
• Port forwarding: If you want external access

🛡️ Security Considerations

Firewall:

• Router firewall enabled
• Only open necessary ports
• Use VPN for remote access

Network Segmentation:

• Separate IoT devices if possible
• Consider VLAN setup for advanced users
• Monitor network traffic

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🛠️ Software Requirements

🐧 Operating System

🟢 Recommended for Beginners:

• Ubuntu Server 22.04 LTS: Most compatible, lots of documentation
• Debian 12: Stable, lightweight, similar to Ubuntu
• Raspberry Pi OS: If using Raspberry Pi

🟡 Intermediate Options:

• CentOS Stream/Rocky Linux: Enterprise-focused
• Proxmox VE: For virtualization
• Synology DSM: If using Synology NAS

🔴 Advanced Options:

• Arch Linux: Cutting-edge, requires expertise
• FreeBSD: Different approach, advanced users only
• Kubernetes: Container orchestration platform

🐳 Docker & Container Runtime

Required Software:

# Docker Engine (container runtime)
sudo apt install docker.io

# Docker Compose (multi-container applications)
sudo apt install docker-compose

# Optional: Portainer (web-based Docker management)
# We'll install this as a service

Version Requirements:

• Docker: 20.10+ (latest stable recommended)
• Docker Compose: 2.0+ (v2 syntax)
• Python: 3.8+ (for Ansible automation)

📝 Text Editor

You'll need to edit configuration files:

🟢 Beginner-friendly:

• nano: Simple, built into most Linux systems
• VS Code: If you prefer graphical editors

🟡 Intermediate:

• vim: Powerful but has learning curve
• emacs: Alternative to vim

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🧠 Knowledge Requirements

📚 Essential Concepts

🟢 Must Know:

• Files and directories: How to navigate file systems
• Text editing: How to edit configuration files
• Copy and paste: How to copy commands and configurations
• Web browsers: How to access web interfaces

🟡 Should Know:

• Command line basics: cd, ls, mkdir, cp, mv, rm
• File permissions: chmod, chown concepts
• Process management: How to start/stop services
• Basic networking: IP addresses, ports, DNS

🔴 Advanced:

• Docker concepts: Images, containers, volumes, networks
• Linux administration: Users, groups, systemd, logs
• Networking: VLANs, firewalls, reverse proxies
• Security: SSL/TLS, authentication, authorization

🔧 Command Line Comfort Level

🟢 Beginner Commands:

# Navigate directories
cd /home/user
ls -la
pwd

# Create and edit files
mkdir my-folder
nano config.txt
cp file1.txt file2.txt

# View file contents
cat file.txt
less file.txt

🟡 Intermediate Commands:

# File permissions
chmod 755 script.sh
chown user:group file.txt

# Process management
ps aux | grep docker
sudo systemctl status docker

# Network troubleshooting
ping google.com
curl http://localhost:8080

🔴 Advanced Commands:

# Docker management
docker ps -a
docker logs container-name
docker exec -it container /bin/bash

# System monitoring
htop
df -h
netstat -tulpn

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🔐 Security Knowledge

🛡️ Basic Security Concepts

🟢 Essential:

• Strong passwords: Use unique, complex passwords
• Software updates: Keep systems updated
• Firewall basics: Block unnecessary ports
• Backup importance: Regular data backups

🟡 Intermediate:

• SSH keys: Public/private key authentication
• SSL/TLS: HTTPS and certificate management
• VPN usage: Secure remote access
• Network segmentation: Isolate services

🔴 Advanced:

• Container security: User namespaces, capabilities
• Network security: IDS/IPS, monitoring
• Compliance: GDPR, data protection
• Incident response: Handling security breaches

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🛠️ Tools You'll Need

💻 On Your Computer

🟢 Essential:

• SSH client: PuTTY (Windows) or built-in (Mac/Linux)
• Text editor: VS Code, Notepad++, or similar
• Web browser: Chrome, Firefox, or similar
• File transfer: SCP, SFTP, or WinSCP

🟡 Helpful:

• Git client: For version control
• Network scanner: Nmap, Advanced IP Scanner
• Terminal emulator: Windows Terminal, iTerm2
• Documentation: Obsidian, Notion, or similar

📱 Mobile Apps (Optional)

• SSH client: Termius, JuiceSSH
• Network scanner: Fing, Network Analyzer
• Password manager: Bitwarden, 1Password
• Monitoring: Uptime Kuma mobile, Grafana mobile

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💰 Cost Breakdown

💵 Initial Investment

🟢 Budget Setup ($100-300):

• Raspberry Pi 4 (8GB): $75
• MicroSD card (64GB): $15
• USB SSD (1TB): $80
• Power supply & case: $30
• Total: ~$200

🟡 Intermediate Setup ($500-1500):

• Mini PC (Intel NUC): $400-800
• RAM upgrade (16GB): $100
• Storage (SSD + HDD): $200-400
• Network equipment: $100-200
• Total: ~$800-1500

🔴 Advanced Setup ($2000+):

• Server hardware: $1000-3000
• Storage array: $500-2000
• Network equipment: $300-1000
• UPS and accessories: $200-500
• Total: $2000-6500+

💡 Ongoing Costs

• Electricity: $50-200/year depending on hardware
• Internet: Existing broadband (no additional cost)
• Domain names: $10-50/year (optional)
• Cloud backup: $5-50/month (optional)
• Hardware replacement: Budget 10-20% annually

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⏰ Time Investment

🕐 Learning Phase (1-3 months)

• Week 1-2: Basic concepts, first service deployment
• Week 3-4: Understanding Docker, networking basics
• Month 2: Deploy 5-10 services, learn troubleshooting
• Month 3: Advanced services, automation basics

🕑 Ongoing Maintenance

• Daily: 5-10 minutes checking alerts/status
• Weekly: 30-60 minutes reviewing logs, updates
• Monthly: 2-4 hours major updates, new services
• Quarterly: Half day for major maintenance

🕒 Project Time Estimates

• First service: 2-4 hours
• Basic monitoring setup: 4-8 hours
• Media server (Plex/Jellyfin): 6-12 hours
• Full homelab (20+ services): 40-80 hours
• Advanced automation: 20-40 hours

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✅ Readiness Checklist

🎯 Before Starting

• Hardware selected and purchased
• Operating system installed and updated
• Network connectivity verified
• Basic command line comfort achieved
• Docker and Docker Compose installed
• SSH access configured
• Backup strategy planned
• Time allocated for learning

🎯 Knowledge Check

• Can navigate command line (cd, ls, mkdir)
• Can edit text files (nano, vim, or GUI editor)
• Understand basic networking (IP, ports, DNS)
• Know how to copy/paste commands
• Comfortable with web browsers and URLs
• Understand importance of backups
• Have patience for troubleshooting

🎯 Environment Check

• Server/computer ready and accessible
• Network connection stable
• Firewall configured appropriately
• Storage space available (100GB+ recommended)
• Power supply reliable (UPS recommended)
• Documentation method chosen (notes, wiki, etc.)

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🚀 Next Steps

🎯 If You're Ready

1. Quick Start Guide: Deploy your first service
2. Architecture Overview: Understand the big picture
3. Service Categories: Explore available services

🎯 If You Need More Preparation

1. What is a Homelab?: Understand the concepts
2. Linux tutorials: Learn command line basics
3. Docker tutorials: Understand REDACTED_APP_PASSWORD
4. Networking basics: Learn about IP addresses and ports

📚 Recommended Learning Resources

• Linux: "Linux Command Line for Beginners"
• Docker: Official Docker documentation and tutorials
• Networking: "Networking for Dummies" or similar
• YouTube: Channels like TechnoTim, NetworkChuck, Craft Computing

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💡 Final Tips

✅ Success Strategies

• Start small: Begin with 1-2 simple services
• Document everything: Keep notes on what you do
• Join communities: Reddit r/homelab, Discord servers
• Be patient: Learning takes time, mistakes are normal
• Have fun: This should be enjoyable, not stressful

⚠️ Common Pitfalls to Avoid

• Over-engineering: Don't build enterprise solutions for home use
• Scope creep: Resist adding "just one more service"
• Neglecting backups: Always have a backup strategy
• Ignoring security: Don't expose services without proper security
• Perfectionism: Good enough is often good enough

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Remember: Everyone starts somewhere. The most important prerequisite is curiosity and willingness to learn. You don't need to know everything before you start - you'll learn as you go!