
IP Security Suite
Tools to guarantee operator (and normal user!) account safety against hacking, and block IP ban evasion via VPNs!
About this Mod
IP Security Suite -- Your one-stop-shop for all things relating to IP filtration!

Important Note: On servers where this mod is installed, there is an option to reveal players' IPs to operators. This works great for smaller, personal servers, but it can potentially lead to doxxing on larger ones. Stay safe!
The core of IP Security Suite -- /ipss
All IP Security Suite subcommands are implemented under the /ipss command.
Set up VPN blocking
To set up VPN blocking, you will need to use the API provided for free by https://vpnapi.io and make an account.
After creating an account, you will be given an API key. Add it to your server by running /ipss vpn api <YOUR API KEY>. Also make sure to do /ipss config set vpn false.
IP-Lock players
You might want to IP-lock an operator on a server to make sure that they can only log in from one IP address.
/ipss locklocks your own account to an IP. An account can be locked to multiple IPs simultaneously./ipss lock other <other_player>locks another player to an IP/ipss lock erase <other_player>erases all IP locks/ipss lock last <other_player>adds a lock for the last attempted IP login.
When you first lock your account, all future logins from other locations are blocked. If you want to access your account from another location, then first, try connecting to the server. The mod will remember the IP with which you connected. Then, from the server terminal, type /ipss lock last <your_username> -- this will add the new IP and allow you to log on.
Configuration settings
Strict mode
By default, the server will allow anyone without an IP-lock to log on freely from any location. Strict mode disables this behaviour, so if a player is not registered at all, they cannot log on, essentially acting like a whitelist.
VPN Logons
By default, the server will allow anyone with a VPN or proxy to log on, even when an API key is set up. To block users with VPNs from logging on, then do /ipss config set vpn false and set up an API key as outlined above.
Apply a lock to yourself without operator
By default, the server will you to lock only your own IP if you don't have operator, but by doing /ipss config set self-lock false disables this behavior, so only operators can set up IP locks for players.
Available Versions
How to Install IP Security Suite on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.3).
Install Mod
Open the mod browser in the dashboard and search for "IP Security Suite". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.3, 1.21.2, 1.21.1 (+1 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
IP Security Suite server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.3). You can switch loaders with one click in the panel.
Is IP Security Suite compatible with fabric?
IP Security Suite officially supports fabric for Minecraft 1.21.3, 1.21.2, 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with IP Security Suite – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if IP Security Suite consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install IP Security Suite with just one click on your server.