Plugin CrazyLoginFilter

CrazyLoginFilter, Bukkit Access Protection

CrazyLoginFilter is a legacy Bukkit plugin that adds an extra security layer to a Minecraft server by filtering incoming IP addresses and connection details. It can protect the whole server or individual player accounts, helping restrict access to trusted networks and reduce unauthorized logins. The plugin supports IP filters, blacklists and whitelists, regular expressions, DNS resolution, and connection rules for local networks, Hamachi, countries, or providers.

It also checks usernames with character and length controls, including case sensitivity options. CrazyLoginFilter requires CrazyCore and suits older Bukkit environments. At BoxToPlay, it can complement a password plugin for a more controlled server experience.