UsernameIpLock
作者：rebot | 分类：模组
Minecraft 版本： 1.21 1.21.1 1.21.2 1.21.3 1.21.4 1.21.5 1.21.6 1.21.7 1.21.8 1.21.9 1.21.10 1.21.11
平台： spigot
标签： management social utility
IpLock
A server-side Fabric mod that prevents account takeovers on offline-mode Minecraft servers by binding each username to the IP address it first joined from.
How it works
When a player joins for the first time, their username is permanently bound to their IP address. If the same username later connects from a different IP, that IP is immediately banned and the connection is rejected. This makes it effectively impossible to impersonate an existing player from a different machine.
- First join — username is bound to the connecting IP, player joins normally.
- Same IP — player joins normally.
- Different IP — connection is rejected and the new IP is banned.
Data is stored in iplock/bindings.json and iplock/bans.json inside the server's run directory.
Commands
All commands require operator level 3 (admin).
| Command | Description |
|---|---|
/iplock list |
Show all username → IP bindings |
/iplock bans |
Show all banned IPs and which username they tried to use |
/iplock unban <ip> |
Remove an IP from the ban list |
/iplock reset <username> |
Delete a username's IP binding (allows them to re-bind from a new IP) |
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