Server Guard
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ServerGuard is a lightweight server-side mod that blocks unauthorized access, bots, and scans. Fully configurable, no client required, and ideal for private, public, or cracked servers. Take full control of who connects and what they see.
Here we can observe how ping attempts are made from different IPs; these are scanners and/or bots that check and collect information from your server
ServerOverflow uses the Minecraft server ping protocol (Server List Ping) to query public servers. It sends a handshake and status request to retrieve basic info like MOTD, version, player count, and server icon—no login needed all without your consent.