I Can Finally Run Minecraft Server For Me And My 2 Friends
I Can Finally Run Minecraft Server For Me And My 2 Friends
Introduction
Every DevOps engineer and system administrator reaches that pivotal moment when their professional skills collide with personal passion projects. For many of us, running a Minecraft server for friends represents the perfect intersection of technical challenge and practical application. But as the Reddit commentary highlights, what appears simple at first glance - “just run a server for a few friends” - quickly reveals layers of infrastructure complexity that demand proper DevOps methodology.
The viral statement “I can finally run Minecraft server for me and my 2 friends” resonates because it encapsulates a universal truth: even seemingly simple services require careful resource allocation, performance tuning, and operational planning. This challenge becomes particularly acute in homelab environments where hardware resources are finite, yet the desire for professional-grade reliability remains high.
In this comprehensive guide, we’ll dissect exactly what it takes to run a stable Minecraft server for small groups (2-5 players) while applying professional DevOps principles. You’ll learn:
- Resource allocation strategies balancing RAM, CPU, and storage
- Containerized deployment patterns for maintainability
- Performance optimization techniques from JVM tuning to world pre-generation
- Security hardening for public-facing game servers
- Monitoring and maintenance workflows suitable for small-scale operations
Whether you’re setting up a private server for friends or using Minecraft as a learning platform for infrastructure management, these battle-tested approaches will transform your homelab into a robust gaming platform.
Understanding Minecraft Server Infrastructure
Technical Architecture Overview
At its core, a Minecraft server is a Java application running the Spigot/Bukkit or vanilla server software. Unlike traditional web services, Minecraft’s technical demands are unique:
- World Persistence: The entire game state (chunks, entities, player data) resides in memory
- Tick-Based Processing: Game logic runs at 20 ticks/second (50ms intervals)
- Procedural Generation: New terrain generation spikes CPU usage
- Player Proximity Processing: Only loaded chunks consume resources
These characteristics create specific performance requirements that Reddit commenters instinctively recognized:
“The critical factor is the number of cpu/threads you can allow to your server. I’ve allowed 3vcpus…”
Resource Allocation Breakdown
Resource Type | Minimum (2-3 players) | Recommended (5-8 players) | Critical Factors |
---|---|---|---|
RAM | 2GB | 4-6GB | View distance, mods |
CPU | 2 cores @ 2.5GHz | 3+ cores @ 3.0GHz+ | Single-thread performance |
Storage | 10GB HDD | 20GB SSD | Chunk loading speed |
Network | 5 Mbps upload | 10 Mbps upload | Player latency |
Real-world testing confirms these parameters align with the Reddit user’s report of running 5-8 players on 10GB RAM with 3 vCPUs. The key insight: Minecraft scales vertically, not horizontally - throwing more weak cores at the problem yields diminishing returns compared to fewer faster cores.
Server Software Options
- Vanilla (Official)
- Pros: Perfect compatibility, simple setup
- Cons: No optimizations, limited plugins
- PaperMC
- Pros: Performance improvements, plugin support
- Cons: Slightly modified gameplay mechanics
- Fabric + Lithium/Phosphor
- Pros: Lightweight optimization mods
- Cons: Requires mod management
For small groups, PaperMC provides the best balance of performance and compatibility, typically offering 2-3x better TPS (ticks per second) than vanilla with equivalent resources.
Prerequisites
Hardware Requirements
Minimum (2-3 players):
- CPU: Intel i3-8100 / AMD Ryzen 3 1200 (4 threads)
- RAM: 4GB DDR4 (2GB allocated to server)
- Storage: 20GB free space (SSD recommended)
- Network: 5 Mbps upload speed
Recommended (5-8 players):
- CPU: Intel i5-10400 / AMD Ryzen 5 3600 (6+ threads)
- RAM: 8GB DDR4 (4-6GB allocated)
- Storage: 40GB NVMe SSD
- Network: 10 Mbps upload, <100ms latency
Software Dependencies
- Java Runtime:
- Adoptium Temurin 17 (LTS) for modern versions
- Java 8 for legacy versions (pre-1.17)
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# Ubuntu/Debian installation sudo apt install temurin-17-jdk
- Operating System:
- Ubuntu Server 22.04 LTS (recommended)
- Rocky Linux 9 (alternative)
- Network Requirements:
- Port 25565 TCP/UDP forwarded
- Static IP for server
- Reverse proxy optional (for web interfaces)
Security Checklist
- Firewall rules restricting SSH access
- Non-root user for server operations
- Automated security updates enabled
- SSH key authentication configured
- Fail2ban installed for brute-force protection
Installation & Setup
Manual Server Deployment
- Create dedicated user account:
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sudo useradd -m -s /bin/bash minecraft sudo passwd minecraft
- Install Java 17:
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sudo apt update && sudo apt install temurin-17-jdk
- Download PaperMC server:
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# Get latest build for 1.21 PAPER_URL=$(curl -s https://api.papermc.io/v2/projects/paper | jq -r '.versions[-1]') BUILD=$(curl -s https://api.papermc.io/v2/projects/paper/versions/$PAPER_URL | jq '.builds[-1]') wget https://api.papermc.io/v2/projects/paper/versions/$PAPER_URL/builds/$BUILD/downloads/paper-$PAPER_URL-$BUILD.jar
- First-run configuration:
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java -Xms2G -Xmx2G -jar paper-*.jar nogui # Accept EULA after first run nano eula.txt # Change eula=false to true
Docker Deployment (Production-Grade)
For better resource isolation and easier updates:
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# Create docker-compose.yml
version: '3.8'
services:
mc:
image: itzg/minecraft-server
container_name: mc
restart: unless-stopped
environment:
EULA: "TRUE"
TYPE: "PAPER"
VERSION: "1.21.4"
MEMORY: "4G"
MAX_PLAYERS: "8"
VIEW_DISTANCE: "10"
ports:
- "25565:25565"
volumes:
- ./data:/data
deploy:
resources:
limits:
cpus: '3.00'
memory: 4G
Start with:
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docker compose up -d
Key configuration parameters:
MAX_PLAYERS
: Limits concurrent connectionsVIEW_DISTANCE
: Controls chunk rendering (major RAM impact)cpus
: Allocates CPU shares (3 cores in this example)
Systemd Service Configuration
For non-Docker deployments, create /etc/systemd/system/mc.service
:
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[Unit]
Description=Minecraft Server
After=network.target
[Service]
User=minecraft
WorkingDirectory=/opt/mc
ExecStart=/usr/bin/java -Xms4G -Xmx4G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -jar paper-1.21.4.jar nogui
Restart=on-failure
RestartSec=5s
[Install]
WantedBy=multi-user.target
Enable with:
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sudo systemctl daemon-reload
sudo systemctl enable mc.service
sudo systemctl start mc.service
Configuration & Optimization
Critical server.properties Settings
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# /opt/mc/server.properties
max-players=8
view-distance=10 # Reduce to 6-8 if experiencing lag
simulation-distance=8
server-port=25565
online-mode=true # Set false for LAN-only
network-compression-threshold=256 # Reduces CPU usage
enable-jmx-monitoring=false # Security hardening
JVM Tuning Best Practices
Use Aikar’s optimized flags for PaperMC:
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java -Xms4G -Xmx4G -XX:+UseG1GC -XX:+ParallelRefProcEnabled \
-XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions \
-XX:+DisableExplicitGC -XX:G1NewSizePercent=30 \
-XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M \
-XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 \
-XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 \
-XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 \
-XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 \
-jar paper-1.21.4.jar nogui
These settings optimize G1 garbage collection for Minecraft’s memory allocation patterns, reducing lag spikes during GC cycles.
Performance Optimization Techniques
- World Pre-generation:
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# Install Chunky plugin chunky radius 5000 # 5k block radius chunky start
- Redstone Limits:
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# paper-world-defaults.yml redstone-implementation: alternate max-auto-save-chunks-per-tick: 8
- Entity Activation Ranges:
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# spigot.yml entity-activation-range: animals: 16 monsters: 24 raiders: 48 misc: 8 water: 8 villagers: 16 flying-monsters: 48
Security Hardening
- Firewall Rules:
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sudo ufw allow 25565/tcp comment 'Minecraft TCP' sudo ufw allow 25565/udp comment 'Minecraft UDP' sudo ufw limit 22/tcp comment 'SSH Rate Limit'
- Backup Strategy:
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# Daily incremental backups 0 3 * * * tar -czvf /backups/mc-world-$(date +\%F).tar.gz /opt/mc/world
- Access Control:
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# ops.json [ { "uuid": "player-uuid-here", "name": "TrustedUser", "level": 4 } ]
Usage & Operations
Daily Management Commands
Command | Description | Docker Equivalent |
---|---|---|
systemctl status mc | Check service status | docker container ls -f name=mc |
tmux attach -t mc | Attach to console | docker attach mc |
say Server restarting | Broadcast message | docker exec mc rcon-cli "say..." |
save-all | Force world save | docker exec mc rcon-cli save-all |
Monitoring Essentials
- In-Game Metrics:
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/timings report # Generates performance analysis
- OS-Level Monitoring:
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htop -u minecraft # Resource usage iotop -o -P # Disk I/O iftop -P # Network traffic
- Prometheus Integration: ```yaml
prometheus.yml
scrape_configs:
- job_name: ‘minecraft’ static_configs:
- targets: [‘mc_exporter:9150’] ```
- job_name: ‘minecraft’ static_configs:
Use Prometheus JMX Exporter with Minecraft’s JMX monitoring.
Backup and Recovery
Snapshot-Based Backups:
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# LVM snapshot script
lvcreate -L1G -s -n mc-snapshot /dev/vg00/minecraft
mount /dev/vg00/mc-snapshot /mnt/snapshot
tar -czvf /backups/mc-full-$(date +\%s).tar.gz /mnt/snapshot
umount /mnt/snapshot
lvremove -f /dev/vg00/mc-snapshot
Restoration Process:
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systemctl stop mc
rm -rf world world_nether world_the_end
tar -xzvf /backups/mc-full-1680000000.tar.gz -C /opt/mc
systemctl start mc
Troubleshooting Common Issues
Server Won’t Start
Symptoms: Java crashes immediately, no logs
- Check Java Version:
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java -version # Must be Java 17+
- Verify Port Availability:
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sudo ss -tulpn | grep 25565
Lag Spikes During Gameplay
Diagnosis Steps:
- Check TPS:
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/tps # Should be 20.0
- Analyze timings:
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/timings on /timings paste
- Monitor GC activity:
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jstat -gc $PID 1000
Solutions:
- Reduce view-distance in server.properties
- Upgrade to SSD storage
- Add JVM flags for GC optimization
- Pre-generate chunks with Chunky
Connection Timeouts
Network Checklist:
- Verify port forwarding:
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nc -zv your-ip 25565
- Check firewall rules:
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sudo ufw status verbose
- Test DNS resolution:
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dig +short mc.your-domain.com
Conclusion
Running a Minecraft server for small groups exemplifies the DevOps principle that “simple” systems still demand professional-grade infrastructure management. Through this guide, we’ve demonstrated how to:
- Right-size hardware allocations based on player count
- Implement production-ready deployments via Docker/systemd
- Tune JVM and server parameters for optimal performance
- Establish monitoring and backup routines
- Troubleshoot common operational issues
The journey from “it works on my machine” to a reliable multiplayer experience mirrors professional infrastructure challenges - resource contention, latency optimization, and graceful degradation under load. What starts as a hobby project becomes a masterclass in practical systems administration.
For those looking to expand their setup:
- Explore Kubernetes operators for Minecraft clustering
- Implement Terraform for cloud-based server provisioning
- Integrate with Discord bots using MCDiscordChat
- Study PaperMC documentation for advanced tuning
Remember that every environment differs - monitor, measure, and iterate. Your perfect two-friends-and-me server configuration awaits at the intersection of technical rigor and gaming joy.