AntiHackerJoin

AntiHackerJoin is useful for preventing hackers from stealing your account by checking if their IP is equal to yours.
How to install it:
1. Download it.
2. Put its jar file in plugins folder.
3. Restart or start it and enjoy your server without hackers.

Commands:
/ahj on: Enable AntiHackerJoin. Default setting and recommended for your account safety.
/ahj off: Disable AntiHackerJoin.
/ahj reload: Reload AntiHackerJoin.
/ahj about: Show about AntiHackerJoin.

Permissions:
antihackerjoin.on - /ahj on
antihackerjoin.off - /ahj off
antihackerjoin.reload - /ahj reload

How it works:
When AntiHackerJoin detects a player joining your server, it checks the player's IP. If he's IP is equal to yours, it will leave him join; if he's IP is different from yours, it will consider him as an hacker and it will kick him.