Minecraft Server Security Guide

As your server grows, it becomes a target. Here's how to protect yourself.

DDoS Protection

Using a host: Verify they offer always-on DDoS mitigation covering TCP and UDP, 10+ Gbps capacity.

Self-hosting: Use TCPShield (free tier available) as a reverse proxy. Never expose your real server IP.

Bot Protection

Install an anti-bot plugin like EpicGuard or BotSentry. They detect bots by checking connection patterns, verifying client behavior, and rate-limiting connections.

In Paper config, set connection-throttle to 4000ms to limit reconnection speed.

Exploit Prevention

Keep Everything Updated

The #1 security rule. Update Paper, plugins, Java, and your OS regularly.

Dangerous Permissions

Never give regular players `*`, `minecraft.command.op`, `essentials.sudo`, or `worldedit.*`. Use LuckPerms for granular control.

Hide Plugin Info

Block `/plugins`, `/version`, and `/about` for non-admins. Attackers use plugin lists to find exploitable versions.

Item Exploits

Install IllegalStack to block oversized NBT data. Configure Paper's NBT limits. Block book-banning attacks.

Network Security (Self-Hosting)

• Only expose needed ports (25565, 8192 for Votifier)
• Use SSH keys, disable root login, install fail2ban
• Run Minecraft as a dedicated user (never root)

Operator Security

• Use LuckPerms instead of /op for staff
• Strong passwords + 2FA on hosting panels
• Limit console access to trusted admins only

Security Checklist

1. DDoS protection active
2. Anti-bot plugin installed
3. All software updated
4. No wildcard permissions
5. /plugins blocked for players
6. Firewall configured
7. Regular backups
8. Strong passwords everywhere
9. Java 21+ with log4j mitigations

Keep your server safe and list it on ServerList.cc.