Minecraft Server Security Best Practices

Running a Minecraft server requires careful attention to security to protect both your server and your players. Here are some essential security practices every server administrator should implement:

1. Keep Your Server Software Updated

Always run the latest stable version of your server software:

Update the server jar file regularly
Keep all plugins and mods up to date
Monitor security announcements from the Minecraft community

2. Secure Server Configuration

server.properties

online-mode=true enforce-secure-profile=true prevent-proxy-connections=true white-list=true spawn-protection=16

Essential Firewall Rules

Only open necessary ports (default: 25565)
Use UFW or similar firewall tools
Implement rate limiting

3. User Management

Enable whitelist mode
Use strong operator passwords
Implement a permission system
Regular audit of operator list

4. Plugin Security

Only download plugins from trusted sources
Regularly review plugin permissions
Remove unused plugins
Check plugin compatibility

5. Backup Strategy

Regular automated backups
Secure backup storage
Test backup restoration
Document backup procedures

6. Network Security

Use a reverse proxy (optional)
Enable DDoS protection
Monitor network traffic
Use SSL/TLS when possible

7. System Security

Keep host system updated
Use strong SSH keys
Disable root login
Monitor system resources

8. Logging and Monitoring

Enable detailed logging
Regular log review
Set up alerts for suspicious activity
Monitor server performance

Best Practices for Players

Use strong passwords
Don’t share account credentials
Report suspicious activity
Use official Minecraft clients

Additional Security Measures

Anti-Cheat Configuration

anti-cheat: max-speed: 100 check-flight: true combat-distance: 4.5

Rate Limiting Example

connection-throttle: 4000 max-connections-per-ip: 3

Remember to regularly review and update these security measures as new vulnerabilities are discovered and best practices evolve.