How to Use

Use the command /properties reload to reload the server.properties file (requires permission level 2 or higher). You will see a report of which properties were changed, and which are unsupported.

Supported Properties

As of 1.18, the following properties are supported:

• allow-flight
• allow-nether
• broadcast-console-to-ops
• broadcast-rcon-to-ops
• difficulty
• enable-command-block
• enable-jmx-monitoring
• enable-query
• enable-rcon
• enable-status
• enforce-whitelist
  • When enabled, it will kick non-whitelisted players even if the whitelist is disabled. This is consistent with Minecraft's existing inconsistency (for ex. /deop command will do the same).
• entity-broadcast-range-percentage
• force-gamemode
  • Only affects players who login after the change.
  • Use /defaultgamemode to set game mode for all online players.
• function-permission-level
  • Only takes place after reloading resource packs using /reload.
• gamemode
  • Only affects players who login after the change.
  • Use /defaultgamemode to set game mode for all online players.
• hardcore
  • The heart icon and respawn menu will only update for players who login after the change, but respawning itself works as expected.
• max-players
  • Only affects players who try to login after the change.
• max-world-size
• motd
• network-compression-threshold
  • Only affects players who login after the change.
  • When changed while a player is logging in, it might cause the connection to be setup incorrectly and cause errors. Be careful.
• online-mode
  • Only affects players who login after the change.
• op-permission-level
  • Works the same as editing server.properties and restarting, i.e. it only applies to users /op'd after the change and does not affect existing operators.
• player-idle-timeout
• prevent-proxy-connections
  • Only affects players who login after the change.
• pvp
• query.port
• rcon.password
  • Any currently connected RCON clients will be disconnected.
• rcon.port
  • Any currently connected RCON clients will be disconnected.
• require-resource-pack
  • Only affects players who login after the change.
• resource-pack
  • Only affects players who login after the change.
• resource-pack-prompt
  • Only affects players who login after the change.
• resource-pack-sha1
  • Only affects players who login after the change.
• simulation-distance
• spawn-animals
• spawn-monsters
• spawn-npcs
• spawn-protection
• view-distance
• white-list

Unsupported Properties

• generate-structures
• generator-settings
• level-name
• level-seed
• level-type
• max-tick-time
• rate-limit
• resource-pack-hash
  • Use resource-pack-sha1 instead.
• server-ip
• server-port
• snooper-enabled
• sync-chunk-writes
• text-filtering-config
• use-native-transport

Installation

The mod only works on dedicated servers. The following mod loaders are supported:

• Fabric (note: this mod does not require Fabric API)
• Forge

After you install the mod loader of your choice, download the mod and place the .jar file into the mods folder of your server.