If using an anti-bot plugin, trigger its emergency lock command (e.g., /uab lockdown for UltimateAntiBot) to block all new connections for a set duration.
Attackers typically deploy these malicious floods for several reasons:
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. minecraft bot attack free
[Definition] failregex = ^.*Lost connection: Took too long to log in.* from <HOST> ^.*UUID of player .* is already logged in.* <HOST> ignoreregex =
Your current (Self-hosted, shared host, dedicated VPS?) If you are currently experiencing an active attack If using an anti-bot plugin, trigger its emergency
Always run the latest version of PaperMC or Spigot , as they often include optimizations that make bot attacks less effective. Summary Checklist for Protecting Your Server Effectiveness Install FlameAntiBot/Bot-Sentry Enable Whitelist Configure Firewall Rate Limiting Use Proxy IP Restrictions
If you want to stay open to new players but block bots, try a If you share with third parties, their policies apply
Testing your anti-bot systems under controlled conditions is crucial to ensure they work effectively without blocking legitimate players. A typical approach involves simulating bot-like behavior (rapid joining/leaving, ping flooding) from test clients while observing how your defenses respond—verify that rate limits kick in, captchas appear, and IPs get temporarily banned without affecting real players. The key is to run these tests on your own infrastructure with explicit permission, as unauthorized testing against other servers is illegal and unethical.
: Never share your raw numerical IP. Always use a domain name and, if possible, keep the backend IP strictly whitelisted to only allow traffic from your proxy (like TCPShield or Velocity). 2. Best Free Anti-Bot Plugins (2026 Recommended)
Consumer routers’ built-in “DDoS protection” cannot handle even a 1 Gbps botnet attack. Attackers easily saturate home internet upload speeds.
While Cloudflare's standard free tier focuses on HTTP web traffic, advanced users can utilize tools like (which has paid tiers) or free reverse-proxy alternatives (like TCPSHIELD's free tier) specifically designed for Minecraft. These services hide your backend server's true IP address and filter out malicious bot traffic at the edge of their global networks. Conclusion