Anti-VPN

A SqidgeonStudios Plugin

Block VPN, proxy, and datacenter connections from your Minecraft server.

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Platforms

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Support

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Features

• Key-free detection — powered entirely by free, open-source IP blocklists
• SQLite & MySQL support — built-in local database or connect to your own external server
• Four combined blocklists — covering attacks, anonymizers, commercial VPNs, and datacenters
• Auto-updating lists — downloads fresh data from GitHub on startup and on a configurable schedule
• Local list caching — all lists saved to disk with dated backups, works offline after first download
• Zero login lag — CIDR matching runs entirely in-memory, microsecond-fast per connection
• LuckPerms integration — full permission node support with per-group and per-player bypass
• Fully customisable messages — every player-facing string lives in messages.yml
• In-game management — add, remove, and inspect IPs and players without touching any files

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Images

With a VPN

!Image 2

!Image 1

Without a VPN

!Image 2

How Detection Works

AntiVPN combines four free blocklists into a single in-memory CIDR matcher that checks every connecting IP in milliseconds:

List	Source	Covers
firehol_level1.netset	Firehol	Attacks, malware, bogon ranges
firehol_anonymous.netset	Firehol	Tor, open proxies, anonymizers
x4bnet_vpn.netset	X4BNet	ProtonVPN, Mullvad, NordVPN, ExpressVPN & more
x4bnet_datacenter.netset	X4BNet	AWS, OVH, Hetzner, DigitalOcean & more

All lists are downloaded to plugins/AntiVPN/firehol/ on first start and automatically refreshed. Dated backup copies are kept every time a new download succeeds.

An optional reverse-DNS heuristic further checks PTR records against known VPN/hosting hostname patterns as a secondary layer.

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Database

AntiVPN stores blocked IPs, allowed IPs, and bypass players in a real database.

SQLite (default — zero setup):

database:
  type: sqlite

Creates plugins/AntiVPN/antivpn.db automatically on first start.

MySQL / MariaDB (external server):

database:
  type: mysql
  mysql:
    host: your.db.host
    port: 3306
    database: antivpn
    username: antivpn_user
    password: "yourpassword"

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LuckPerms Permissions

AntiVPN integrates with LuckPerms out of the box. If LuckPerms isn't installed it falls back to Bukkit permissions automatically.

Permission	Default	Description
antivpn.admin	OP	All permissions including bypass
antivpn.bypass	false	Skip all VPN checks at login
antivpn.allow	OP	Use /ipallow
antivpn.block	OP	Use /ipblock
antivpn.list	OP	Use /iplist
antivpn.user	OP	Use /ipuser
antivpn.update	OP	Use /ipupdate

Grant bypass to a group via LuckPerms:

/lp group vip permission set antivpn.bypass true

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Commands

/ipblock — Manage the IP block-list

Subcommand	Description
/ipblock add <ip>	Block an IP address
/ipblock remove <ip>	Unblock an IP address
/ipblock list	Show all manually blocked IPs
/ipblock check <ip>	Show block/allow status of an IP

/ipallow — Manage the IP allow-list

Subcommand	Description
/ipallow add <ip>	Whitelist an IP (bypasses all checks)
/ipallow remove <ip>	Remove from allow-list
/ipallow list	Show all allowed IPs

/ipuser — Manage bypass players

Subcommand	Description
/ipuser add <player>	Exempt a player from all VPN checks
/ipuser remove <player>	Remove exemption
/ipuser list	Show all bypass players
/ipuser check <player>	Check a player's bypass status
/ipuser lookup <player>	Show an online player's IP and full status

/iplist — View all lists

Subcommand	Description
/iplist	Summary of all list sizes
/iplist blocked	Full blocked IP list
/iplist allowed	Full allowed IP list
/iplist users	Full bypass player list

/ipupdate — Manage blocklists

Subcommand	Description
/ipupdate	Force-download all lists now
/ipupdate status	Show list file sizes, dates, and active CIDR count
/ipupdate reload	Reload matcher from existing local files
/ipupdate backups	List all dated backup files

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Configuration

config.yml

log-connections: true

database:
  type: sqlite         # or "mysql"

lists:
  firehol-level1: true
  firehol-anonymous: true
  x4bnet-vpn: true        # Covers ProtonVPN, Mullvad, NordVPN etc.
  x4bnet-datacenter: true # Covers AWS, OVH, Hetzner etc.

firehol:
  update-interval-hours: 24
  force-update-on-start: false

reverse-dns-check: true

messages.yml

Every message the plugin sends is fully customisable. Supports & colour codes and {placeholders}.

general:
  prefix: "&8[&cAntiVPN&8] &r"

kick:
  message: "&c&lConnection Refused\n&7VPN connections are not permitted."

ipblock:
  added: "{prefix}&c{ip} &7has been added to the block-list."
  # ... and many more

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File Structure

After first startup your plugin folder will look like this:

plugins/AntiVPN/
├── antivpn.db                          ← SQLite database (all your lists)
├── config.yml
├── messages.yml
└── firehol/
    ├── firehol_level1.netset
    ├── firehol_anonymous.netset
    ├── x4bnet_vpn.netset
    ├── x4bnet_datacenter.netset
    └── *.bak                           ← Dated backups of each list

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Requirements

• Java 11+
• LuckPerms (optional — falls back to Bukkit permissions)
• Internet access on first start to download blocklists (works offline after that)

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Support

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Licence

This project is maintained by SqidgeonStudios. You are NOT allowed to re-distribute this plugin without consent from us!

No API keys. No subscriptions. No nonsense.