server.properties settings | MCUtility

Values are case-sensitive: write true, not True.
A setting that is missing or has an invalid value is set to its default when the server starts.
The server rewrites the file on startup, escaping some characters such as :. The server.properties Generator writes values the same way.
Old settings such as pvp and allow-nether are game rules now. See how to configure server.properties.

Basic server settings

Setting	Default	Allowed values	What it does
`motd`	`A Minecraft Server`	Text	The text shown under the server name in the server list. Supports § colour and formatting codes.
`max-players`	`20`	0 to 2,147,483,647	How many players can be online at the same time.
`gamemode`	`survival`	`survival`, `creative`, `adventure`, `spectator`	The game mode new players start in.
`force-gamemode`	`false`	`true`, `false`	Put players back into the default game mode every time they join.
`difficulty`	`easy`	`peaceful`, `easy`, `normal`, `hard`	How much damage mobs deal and how hunger affects players.
`hardcore`	`false`	`true`, `false`	Create the world in hardcore mode: players who die can only spectate.

World

Setting	Default	Allowed values	What it does
`level-name`	`world`	Text (required)	The folder the world is loaded from. If it doesn’t exist, a new world is generated there.
`level-seed`	empty	Text	A number or any text. Leave it empty for a random seed. Only used when a new world is generated.
`level-type`	`minecraft:normal`	`minecraft:normal`, `minecraft:flat`, `minecraft:large_biomes`, `minecraft:amplified`, `minecraft:single_biome_surface`	The world preset used when a new world is generated.
`generate-structures`	`true`	`true`, `false`	Generate villages, temples and other structures in new chunks. Dungeons still generate when this is off.
`generator-settings`	`{}`	A JSON object	A JSON object that customises Superflat and Single biome worlds. Leave as {} for other world types.
`max-world-size`	`29999984`	1 to 29,999,984	The largest radius, in blocks from the centre, that the world border can have.
`initial-enabled-packs`	`vanilla`	Text	Comma-separated data packs enabled when the world is created. Feature packs must be listed here to be enabled.
`initial-disabled-packs`	empty	Text	Comma-separated data packs that aren’t enabled automatically when the world is created.
`region-file-compression`	`deflate`	`deflate`, `lz4`, `none`	How chunks are compressed on disk. Existing chunks aren’t recompressed until they change.
`sync-chunk-writes`	`true`	`true`, `false`	Write chunks to disk synchronously to avoid data loss after a crash, at some cost to speed.

Gameplay

Setting	Default	Allowed values	What it does
`view-distance`	`10`	3 to 32	How many chunks the server sends around each player (radius).
`simulation-distance`	`10`	3 to 32	How many chunks around each player keep updating mobs, crops and redstone (radius).
`spawn-protection`	`16`	0 to 2,147,483,647	Non-operators can’t break or place blocks within this many blocks of spawn. 0 turns it off. It has no effect while there are no operators.
`allow-flight`	`false`	`true`, `false`	Don’t kick players who fly in Survival mode, for example with a mod. Creative flight works either way.
`player-idle-timeout`	`0`	0 to 2,147,483,647	Kick players who have been idle this many minutes. 0 never kicks idle players.
`pause-when-empty-seconds`	`60`	0 to 2,147,483,647	How long the server waits after the last player leaves before it pauses the world.
`entity-broadcast-range-percentage`	`100`	10 to 1,000	How far away entities are sent to players, as a percentage of the normal distance.
`max-chained-neighbor-updates`	`1000000`	-2,147,483,648 to 2,147,483,647	Limit on consecutive block updates before extra ones are skipped. A negative value removes the limit.
`op-permission-level`	`4`	0 to 4	The permission level players get from /op, from 0 to 4.
`function-permission-level`	`2`	1 to 4	The permission level data pack functions run with, from 1 to 4.
`enable-code-of-conduct`	`false`	`true`, `false`	Show players a code of conduct from text files in the server’s codeofconduct folder.

Network and security

Setting	Default	Allowed values	What it does
`server-port`	`25565`	1 to 65,535	The TCP port players connect to. 25565 is the standard Java Edition port.
`online-mode`	`true`	`true`, `false`	Check every player against Microsoft’s account servers.
`white-list`	`true`	`true`, `false`	Only let players listed in whitelist.json join. Operators can always join.
`enforce-whitelist`	`false`	`true`, `false`	Kick online players who aren’t on the whitelist when it is reloaded.
`server-ip`	empty	Text without spaces	Leave empty to listen on every network interface, which is right for almost every server. Only set an address if the machine has several and you want to use one.
`enforce-secure-profile`	`true`	`true`, `false`	Only allow players with a Mojang-signed chat key, so chat messages can be reported.
`prevent-proxy-connections`	`false`	`true`, `false`	Kick players whose network doesn’t match the one Mojang’s authentication servers saw.
`enable-status`	`true`	`true`, `false`	Answer server list pings. When off, the server looks offline but players can still join.
`hide-online-players`	`false`	`true`, `false`	Don’t send the list of online players in server list pings.
`accepts-transfers`	`false`	`true`, `false`	Accept players sent here from another server with the /transfer command.
`log-ips`	`true`	`true`, `false`	Include player IP addresses in the console and log files.
`rate-limit`	`0`	0 to 2,147,483,647	Kick players who send more packets per second than this. 0 turns it off.
`chat-spam-threshold-seconds`	`10`	0 to 2,147,483,647	Sensitivity of the automatic kick for sending chat messages too quickly. 0 turns it off.
`command-spam-threshold-seconds`	`10`	0 to 2,147,483,647	Sensitivity of the automatic kick for sending commands too quickly. 0 turns it off.
`network-compression-threshold`	`256`	-1 to 2,147,483,647	Packets of at least this many bytes are compressed. -1 turns compression off, 0 compresses everything.
`use-native-transport`	`true`	`true`, `false`	Use optimised networking on Linux.
`bug-report-link`	empty	Text without spaces	A URL players can open from the pause menu to report bugs. Leave empty to show no link.

Resource pack

Setting	Default	Allowed values	What it does
`resource-pack`	empty	Text without spaces	A direct download link to a server resource pack (up to 250 MiB). Leave empty for none.
`resource-pack-sha1`	empty	40 hexadecimal characters, or empty	The pack’s SHA-1 hash in lowercase hex, so clients can check the download.
`resource-pack-id`	empty	A UUID with dashes, or empty	An optional UUID that identifies the pack to clients.
`require-resource-pack`	`false`	`true`, `false`	Disconnect players who decline the resource pack.
`resource-pack-prompt`	empty	Text	A custom message for the resource pack prompt, as a text component. Leave empty for the default message.

Remote access and monitoring

Setting	Default	Allowed values	What it does
`enable-rcon`	`false`	`true`, `false`	Allow remote console access. RCON isn’t encrypted, so only use it on a trusted network.
`rcon.port`	`25575`	1 to 65,535	The TCP port RCON listens on.
`rcon.password`	empty	Text	Required for RCON to start. It is stored as plain text in server.properties. This page doesn’t save or send it.
`broadcast-rcon-to-ops`	`true`	`true`, `false`	Send the output of RCON commands to online operators.
`broadcast-console-to-ops`	`true`	`true`, `false`	Send the output of console commands to online operators.
`enable-query`	`false`	`true`, `false`	Answer GameSpy4 query requests with server information.
`query.port`	`25565`	1 to 65,535	The UDP port query listens on.
`enable-jmx-monitoring`	`false`	`true`, `false`	Expose tick times through Java Management Extensions. Also needs JVM flags.

Server Management Protocol

Setting	Default	Allowed values	What it does
`management-server-enabled`	`false`	`true`, `false`	Start the Minecraft Server Management Protocol, an API for managing the server over a WebSocket.
`management-server-host`	`localhost`	Text without spaces	The address the management server listens on.
`management-server-port`	`0`	0 to 65,535	The port the management server listens on.
`management-server-secret`	empty	40 letters and digits, or empty	A 40-character letters-and-digits secret clients must send. Leave empty and the server generates one.
`management-server-tls-enabled`	`true`	`true`, `false`	Use TLS for the management server. It won’t start with TLS on and no keystore.
`management-server-tls-keystore`	empty	Text	Path to the keystore file used for TLS.
`management-server-tls-keystore-password`	empty	Text	Stored as plain text. The `MINECRAFT_MANAGEMENT_TLS_KEYSTORE_PASSWORD` environment variable is an alternative.
`management-server-allowed-origins`	empty	Text	Web origins allowed to connect to the management server.
`status-heartbeat-interval`	`0`	0 to 2,147,483,647	How often the management server sends heartbeat notifications to clients. 0 turns them off.

Other

Setting	Default	Allowed values	What it does
`max-tick-time`	`60000`	-1 to 9223372036854775807	The watchdog stops the server if one tick takes longer than this. -1 turns the watchdog off.
`text-filtering-config`	empty	Text	Chat filtering configuration used by Realms. Leave empty on your own server.
`text-filtering-version`	`0`	0 to 1	The format version of the text filtering config (0 or 1).