# Limits an IP to 3 new connections per 30 seconds on the Minecraft port ufw limit from any to any port 25565 proto tcp
: Requires players to register with a password upon joining. While simple, it often trips up basic automated "flood" bots that aren't programmed to handle login commands. Matrix or Vulcan (Anti-Cheats)
Thousands of automated accounts attempt to connect at the exact same millisecond. This chokes the server's main thread as it struggles to authenticate usernames via Mojang's servers. minecraft bot attack free
For public servers, specialized plugins are essential for detecting and kicking bots in real-time. Notable options include:
: Connect unlimited bots, use SOCKS4/5 proxies, and set messages or commands for bots to send upon joining. Command Example java -jar mc-bots.jar -s -c Minecraft Holy Client # Limits an IP to 3 new connections
To know if your free anti-bot setups actually work, you can run a controlled bot stress test against your own network using open-source libraries.
: If you use a proxy, FlameCord is a highly optimized version of BungeeCord designed specifically to mitigate bot attacks. It fixes various exploits and includes built-in packet filtering that drops bot traffic before it even reaches your sub-servers. This chokes the server's main thread as it
Set online-mode=true in your server.properties file. This forces the server to authenticate every connecting account through official Mojang/Microsoft servers. This single step eliminates cheap, cracked accounts and basic proxy bots entirely.