Minecraft Server: Difference between revisions

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== Setup ==

The minimum example to have a Minecraft server running on localhost at the default port of <code>25565</code>. By setting the <code>eula</code> option to <code>true</code>, you are agreeing to the [https://www.minecraft.net/en-us/eula Minecraft EULA]

The minimum example to have a Minecraft server running on localhost at the default port of <code>25565</code>. By setting the <code>eula</code> option to <code>true</code>, you are agreeing to the [https://www.minecraft.net/en-us/eula Minecraft EULA].

{{file|/etc/nixos/configuration.nix|nix|<nowiki>

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allow-cheats = true;

};

jvmOpts = "-~~Xms4092M~~ -~~Xmx4092M -XX:+UseG1GC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10~~";

jvmOpts = "-Xms2048M -Xmx4096M";

};

</nowiki>}}

You might want to look at using using [https://docs.papermc.io/paper/aikars-flags/ Aikar's flags] or the [https://github.com/brucethemoose/Minecraft-Performance-Flags-Benchmarks Minecraft performance flags benchmark].

== Tips and tricks ==

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=== Prefer IPv4 ===

To use IPv4 by default, add <code>-Djava.net.preferIPv4Stack=true</code> to <code>jvmOpts</code> ~~(the first two options are just the defaults)~~

To use IPv4 by default, add <code>-Djava.net.preferIPv4Stack=true</code> to <code>jvmOpts</code>.

<~~syntaxhighlight lang="~~nix">

=== Use a different server version/package ===

~~jvmOpts~~ = "-~~Xmx2048M~~ -~~Xms2048M~~ -~~Djava~~.~~net~~.~~preferIPv4Stack=true"~~;

</~~syntaxhighlight~~>

To use a specific server version, or another Minecraft server—such as [https://papermc.io/ PaperMC]—change <code>services.minecraft-server.package</code> to a nix package that represents your desired server.

For example:

<code>services.minecraft-server.package = pkgs.minecraftServers.vanilla-1-12;</code>

or

<code>services.minecraft-server.package = pkgs.papermc;</code>

[[Category: Applications]]

[[Category: Gaming]]

@@ Line 6: / Line 6: @@
 == Setup ==
-The minimum example to have a Minecraft server running on localhost at the default port of <code>25565</code>. By setting the <code>eula</code> option to <code>true</code>, you are agreeing to the [https://www.minecraft.net/en-us/eula Minecraft EULA]
+The minimum example to have a Minecraft server running on localhost at the default port of <code>25565</code>. By setting the <code>eula</code> option to <code>true</code>, you are agreeing to the [https://www.minecraft.net/en-us/eula Minecraft EULA].
 {{file|/etc/nixos/configuration.nix|nix|<nowiki>
@@ Line 37: / Line 37: @@
      allow-cheats = true;
    };
-   jvmOpts = "-Xms4092M -Xmx4092M -XX:+UseG1GC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10";
+   jvmOpts = "-Xms2048M -Xmx4096M";
 };
 </nowiki>}}
+You might want to look at using using [https://docs.papermc.io/paper/aikars-flags/ Aikar's flags] or the [https://github.com/brucethemoose/Minecraft-Performance-Flags-Benchmarks Minecraft performance flags benchmark].
 == Tips and tricks ==
@@ Line 45: / Line 46: @@
 === Prefer IPv4 ===
-To use IPv4 by default, add <code>-Djava.net.preferIPv4Stack=true</code> to <code>jvmOpts</code> (the first two options are just the defaults)
+To use IPv4 by default, add <code>-Djava.net.preferIPv4Stack=true</code> to <code>jvmOpts</code>.
-<syntaxhighlight lang="nix">
+=== Use a different server version/package ===
-jvmOpts = "-Xmx2048M -Xms2048M -Djava.net.preferIPv4Stack=true";
-</syntaxhighlight>
+To use a specific server version, or another Minecraft server—such as [https://papermc.io/ PaperMC]—change <code>services.minecraft-server.package</code> to a nix package that represents your desired server.
+For example:
+<code>services.minecraft-server.package = pkgs.minecraftServers.vanilla-1-12;</code>
+or
+<code>services.minecraft-server.package = pkgs.papermc;</code>
 [[Category: Applications]]
 [[Category: Gaming]]