Modify the connection-throttle setting in your bukkit.yml or spigot.yml file. Increasing this value (e.g., to 4000 milliseconds) forces a delay between connection attempts from the same IP address, slowing down automated flood scripts.
The server owner, let's call him Alex, didn't want to pay for expensive "Enterprise" protection. Instead, Alex used three free methods to stop the bots forever: The Whitelist Shield: Alex turned on the /whitelist
Reminder: Only use these tools on servers you own or have explicit permission to test! ⚠️ Option 3: Community Awareness (Short Social Post) Is your Minecraft Realm safe? 🛡️
: If you notice all your bot traffic is coming from a specific country where you have no players, you can use free firewall rules (like UFW on Linux) to block that country's IP range entirely. minecraft bot attack free
Bot-Sentry is another excellent, free plugin that provides real-time protection against malicious bot connections.
A Minecraft bot attack can be a frustrating obstacle, but protecting your community does not require a massive financial investment. By migrating to optimized server software like Paper, utilizing free proxy forks like FlameCord, and configuring basic firewall rate-limiting, you can build a resilient defense network completely free of charge.
Bots spam actions (movement, chat, block interaction) to cause massive TPS (Ticks Per Second) drops, making the server unplayable. Modify the connection-throttle setting in your bukkit
Use a proxy like or BungeeCord as the front door to your server.
: Use a plugin like LuckPerms to restrict new, unregistered players to a restricted "Spawn" area where they cannot interact with the world or use chat until they pass a manual or automated review.
Understanding and Defending Against Minecraft Bot Attacks: A Free Guide (2026) Instead, Alex used three free methods to stop
Relying solely on built-in settings will not stop sophisticated distributed bot attacks (DDoS/DDoS proxy bots). You need dedicated plugins that analyze connection patterns.
Hundreds of bots join and leave instantly to lag the CPU.
Stay vigilant and monitor your server and world for suspicious activity:
Adds a chat-based or GUI-based captcha on join. Bots can't read or type the random code, so they get kicked after 15 seconds.