LAN Ops

LAN Ops is a lightweight Fabric mod for LAN worlds that lets the host grant command access to specific players without fully opening commands to every guest.

When a singleplayer world is opened to LAN, LAN Ops locks command usage to:

• the LAN host
• players trusted through /lanop

Untrusted LAN guests are treated as having no command permissions while the world is published to LAN.

Commands

These commands are available to the LAN host in a LAN world. On non-LAN servers, the normal operator check is used for command management.

/lanop <player>
/lanop add <player>
/lanop remove <playerNameOrUuid>
/lanop list
/lanop reload
/unlanop <playerNameOrUuid>

Command Notes

• /lanop <player> and /lanop add <player> do the same thing.
• /lanop remove and /unlanop remove a trusted player by stored name or UUID.
• /lanop list shows all trusted entries currently loaded.
• /lanop reload reloads lanops.json from disk.

Config File

LanOps stores its config at:

config/lanops.json

Example:

{
  "configuredOwnerUuid": "",
  "configuredOwnerName": "",
  "trustedPlayers": {
    "00000000-0000-0000-0000-000000000000": "ExamplePlayer"
  }
}

Config Fields

• configuredOwnerUuid: optional override used to recognize the LAN host by UUID.
• configuredOwnerName: optional fallback owner name if no owner UUID is set.
• trustedPlayers: map of trusted player UUIDs to display names.

In normal use, you can manage trusted players entirely through the in-game commands and let the mod maintain this file for you.