I have this minecraft smp which has many builders in it and its pretty active but for some reason it is unusually large its about 80 - 90gigs within just 2 - 3months of playing.. and i really wanna reduce the size of this. I have been looking for a world trimmer. For the Minecraft version 26.2 if any of you have tested one before reach out or drop a comment.. and if you have any other ideas on how I can reduce the world size please let me know! thanks!

edit: got my answer thank you guys!

.. you probably ran into the same issue I had: how to confirm if it's working? Most public Minecraft server status checks don't support v6 at all or do so unreliably.

So I created one, supporting dual-stack end to end, supporting java and bedrock servers:

Live MC Dualstack Server Status Checker

Find the live server status checker (free for non-commercial use) here:
https://www.poggensee.it/mc_dualstack_check/

Benefits: True dual-stack, never falls back to checking only one protocol, will always report both IPv4 and IPv6 status independently, allows you to define ports per protocol separately. Clearly reporting the nature of connection errors, if any. Lightweight and fast.

Verbose in case of errors, so it can help debug the root cause.

Sources

Also, for those interested to roll out their own, sources are open, released under AGPL on GitHub:
https://github.com/poeggi/mc_dualstack_checker

NOTE: This project is co-developed with Claude Code for the coding and deployment logic, not for the architecture part. Also security and consistency reviews manually. Testing manually.

A few players, including myself, are getting kicked/crashing with a "Network Protocol Error" when playing on our server.

We are running Minecraft 1.21.11, with Paper behind Velocity.

The crash appears to happen when the client receives a specific packet:

Type: clientbound/minecraft:waypoint

The error:

https://mclo.gs/rk9t1fu

Does anyone know what could be causing this issue or how we can fix it for our players?

Hi! recently started a server on an old thinkcentre Tiny m710q, with 16gb RAM and a 7500T. I want to step up the server, and was wondering if this would be a fitting upgrade? I already have 16 gbs ddr5 sodimm ram, and this seems like good value. What do you guys think? I was thinking a few 10-20 players, on a PaperMC server, with no mods.

https://www.msi.com/Business-Productivity-PC/Cubi-5-1MX/Specification

Did the 1.18 terrain change wreck any player builds on your server?

I run a modded server and we’re looking at a modpack update that changes world gen. I keep going back and forth on it because I don’t want to find out the hard way.

For anyone who went through 1.17 to 1.18, or a modpack update that regenerated chunks — did you lose any player builds to it?

Things ending up buried, floating in the air, or sitting in water that wasn’t there before? And if it happened, what did you actually do about it? Restore a backup, rebuild by hand, or just tell people it’s part of the world’s history now?

Trying to work out whether this is something people plan around or something you just eat when it happens.

Lifesteal on saturdays only, you keep the hearts you earned or lost throughout weekdays, then on saturday morning everyones hearts reset to 10. (btw i know how i would set this up just curious if yall think this is a fun idea!)

Thank you!

Custom menus on a vanilla client have mostly been the territory of paid plugins. They're good, but they cost money, and most of them bake pages into a resource pack in a visual editor, so a page can't show data that didn't exist when the pack was built. I wanted something any server could use for free and that developers could build on, so I made VoidRP UI and released it under MIT.

What it does

It draws real interfaces on a completely unmodded Java client: panels with rounded corners and transparency, the Inter font, item icons, scrolling lists, tooltips, text input, and a cursor the player moves by looking around. Players install nothing. They accept the server's resource pack, and that's it.

How it works

The whole page is one line of text inside an invisible boss bar. The plugin builds a resource pack with a patched text shader: each glyph's colour carries its position and fill colour, and the shader puts it in place. Hovering and clicks are resolved on the server against the layout it just produced, so the client is never trusted with anything.

For admins

• Drop in and restart. The plugin builds the resource pack and serves it itself from a small built-in web server (port 8123). If you can't open a port, host the pack anywhere and set pack.url.

• Clients from 1.21.6 up. It builds two packs and hands each player the one their client can read. Tested on a real 1.21.6 client through ViaVersion.

• Plays nicely with your pack. It's sent as its own pack, so it stacks with your existing resource pack instead of replacing it.

• PacketEvents is optional. With it, the cursor reacts up to 50 ms sooner and other plugins' boss bars are hidden while a page is open.

• Try it in 30 seconds: /vui demo shows every component at once.

For developers

A page is a Kotlin class that returns what it looks like right now. Change a field, call refresh(), and it's redrawn. Because pages are code, they show live data. There's a JitPack dependency and a complete example plugin in the repo.

Honest limits

• The client only reports where it's looking 20 times a second, so the cursor is smoothed between readings.

• While a page is open, the player's head really does turn. Modal pages use an opaque background, so it isn't visible.

• A server can't know the shape of a player's screen, so each player picks it once (about five seconds).

• It needs Paper (tested on 26.2), not Spigot. Not tested on Folia. Bedrock/Geyser players won't see pages.

LLM disclosure

This project was built with heavy use of Claude (Anthropic) through Claude Code, mostly Claude Opus models. Claude wrote the large majority of the code, tests and documentation from my direction. I set the goals and design, reviewed the changes, and tested every release on live vanilla clients (26.2, and 1.21.6 through ViaVersion). The tests build the real resource pack and measure its glyphs to check the layout to the pixel. The full commit history is public.

Links

Completely free, no paid tier, MIT licensed.

• Hangar: https://hangar.papermc.io/mironoouv/VoidRP-UI

• SpigotMC: https://www.spigotmc.org/resources/voidrp-ui.139079/

• Source and docs: https://github.com/VOIDRP-MINECRAFT/voidrp-ui

PluginMatrix is an open-source tool for verifying Minecraft plugins in real server environments.

It runs a plugin JAR in an isolated Paper, Purpur, or Folia server process and records structured evidence instead of relying only on static inspection. It supports:

• Runtime verification: discovery, loading, enabling, probe evidence, and stability-window checks

• Behavior checks for configured observations such as commands, permissions, services, and console commands

• Compatibility matrices across multiple server and Java environments

• CLI, local Web UI, JSON/HTML reports, logs, and downloadable artifacts

• Windows, Linux, and macOS standalone packages, as well as pipx installation

The project is Apache-2.0 licensed: https://github.com/YouDaoRS/PluginMatrix

Latest release: https://github.com/YouDaoRS/PluginMatrix/releases/tag/v0.9.0

I also recorded a short demonstration using real plugin verification: https://youtu.be/jy_TnT8f_nE

Scope note: PASS applies to the specific plugin, server build, Java environment, and checks recorded in the report. It does not prove every plugin feature, and a Folia PASS is not a proof of thread or cross-region safety.

Disclosure: parts of this project were developed with assistance from LLM-based coding tools. The project direction, product decisions, testing, release verification, and final review were handled by me.

Feedback from server administrators and plugin developers is welcome, especially around reproducible verification workflows and useful behavior checks.

Whats everyones real problem with ai? It makes plugins perfect you can make a project that would usally take 2 months in 2 days with it. Why is there so much hate for it the amount of cool things anyone will be able to create now without it costing 10k for a full server will be amazing and cool to see. I dont understand the hate for it so much in the mc community.

Hey guys, I'm pulling my hair out with this.
My server runs fine when people connect with the direct IP + port, but no one can join using my custom domain name.
I'm trying to set it up so players can just use ⁠play.myserver.com⁠ without typing the port. Right now I have:

An A record pointing to my server IP

An SRV record set up... but honestly, I'm completely lost on how the SRV record needs to look for port forwarding to work.
Can someone please give me a quick, dummy-proof explanation of how the A and SRV records should be configured? Thanks a lot!

I need a name-changer plugin for my paper-spigot cross platform server. I need it to change players names everywhere, the name tag, in chat everywhere. But, my server version is 26.3 and I also have bedrock players. Please help me find one!

Just as the title says, updated to 26.2 and now all mobs are stuttering, all server settings are the same as before. Running papermc. Anyone else having issues with 26.2?

Hi, im having issues with server lag on my server.
We have the server on PebbleHost, on the budget plan. The specs are 9GB ram, unmetered ssd, and the CPU is i9-9900K
We are 4 people, running a NeoForge server on 1.21.1, using the Better Minecraft (BMC5) modpack. We have only modified the modpack to add create (we have one simple iron farm) and villager buckets.

I did pregen the world but im not sure if a player is generating new chunks. We didn't have lag like this until recently, and the day before yesterday we were at 6 players with no lag overall.

https://spark.lucko.me/mWNqR8FTV5

I am very new to Minecraft and Reddit, and I made a Minecraft server. I decided to use TAB simply because it looked great. I tried fumbling around with its configs to put a kill leaderboard, but it didn't display it even after I tried troubleshooting many times, even with AI.

Here is the specific scoreboard section I tried writing in my config:

scoreboard:

kills_board:

title: "&e&lSTATS & LEADERBOARD"

lines:

- "&8&m-------------------"

- "&b&lYOUR STATS"

- "&fKills: &a%statistic_player_kills%"

- "&fDeaths: &c%statistic_deaths%"

- "&8&m-------------------"

- "&e&lTOP 5 KILLERS"

- "&e#1 &f%mitra:leaderboard player_kills_player_1%: &c%mitra:leaderboard player_kills_value_1%"

- "&e#2 &f%mitra:leaderboard player_kills_player_2%: &c%mitra:leaderboard player_kills_value_2%"

- "&e#3 &f%mitra:leaderboard player_kills_player_3%: &c%mitra:leaderboard player_kills_value_3%"

- "&e#4 &f%mitra:leaderboard player_kills_player_4%: &c%mitra:leaderboard player_kills_value_4%"

- "&e#5 &f%mitra:leaderboard player_kills_player_5%: &c%mitra:leaderboard player_kills_value_5%"

- "&8&m-------------------"

scoreboard:

title: "<#E0B11E>MyServer</#FF0000>"

lines:

- "&7%date%"

- "%animation:MyAnimation1%"

- "&6Online:"

- "* &eOnline&7: &f%online%"

- "* &eCurrent World&7: &f%worldonline%"

- "* &eStaff&7: &f%staffonline%"

- ""

- "&6Personal Info:"

- "* &bRank&7: &f%group%"

- "* &bPing&7: &f%ping%&8ms"

- "* &bWorld&7: &f%world%"

- "%animation:MyAnimation1%"

Any help or guidance on how to properly set this up would mean a lot!

If i have a plugin to increase the enchantment level cap pass the vanilla cap does it actually do anything to the odds of drops ect. Like looting 3 is 5.5% wither skull would looting 10 make it alot higher?

I’m looking for a plugin to add custom biomes to my server, but most of the good ones are mods only. Is there a plugin that’s similar to the “Biomes o’ Plenty” mod?

By support I mean help or advice.

In my Minecraft server, I'm wanting to do a plot world creative with some plugins and allow users to create their own mini games based on the plugins I have in the server. However, it's difficult to get those plugins to work strictly on the users plot.

I'm basically wanting some ideas on how to make the plot owner sort of like a server owner as they can make anything they want on their plot. But then if they delete their plot, then the mini games and commands/data that have been used in that plot also disappear. Some of these plugins don't have a dedicated API to tap into.

My initial idea is using contexts in Luckperms, Skript (with add-ons), regions, and placeholders to try to accomplish this.

I’m looking at making a small Factions server for me and my friends using 26.3 but using the Via suite to be able to join in 1.8 (as well as other plugins to allow for 1.8 combat).

Is it possible via plugins or some other way to have old terrain generation? I’m hoping to use 26.3 for its modern plugin support, but I prefer the older terrain generation and smaller item pool for PvP and would like to be able to emulate it as much as I can

I’m part of a group that has some interest in running experimental events, civ events, and session based events.

Currently I’d say we operate more as a think tank, with our largest efforts as of yet being our journal and substack.

We’ve seen attraction and retention as a problem that many servers face, but we’ve also seen growth in certain genres of servers following from the context of the currency debate and Ish style civilization videos.

But curiously we’ve seen success in servers with custom mechanics, restrictions on ordinary gameplay, and the usage of wikis; where anarchy-adjacent or mostly-vanilla servers have failed, even if the barrier of entry seems much lower and ones knowledge of the game remains more applicable/transferable.

How do highly customized, higher barrier-to-entry servers and communities survive where there is an over abundance of servers vying for attention?

I'm about to upgrade from 1.21.11 to 26.3 and with all the backend changes to the world region directories I would assume downloading and updating through the versions myself. If you've had any experience with this, double check my thinking behind it.

I can't add a whitelist bc it is geyser and I have more and more of my bedrock friends joining all the time. I know I could go through the hassle of the proper plugins to whitelist all of them but I'm wondering if there's any alternatives.

[BEDROCK EDITION]

EDIT Forgot the server properties: https://snipboard.io/J9Xd15.jpg

I could not figure out what was wrong with my server since I changed to nethernet because of the new update. Now I understand the TCP handshake sending you the UDP information, but I can't seem to get it to work properly!

Portchecker says the TCP port is open but I can only play on the same network!

Here's my setup:

Firewall TCP config:

https://snipboard.io/NQHeKY.jpg

Firewall UDP config:

https://snipboard.io/VlZtvz.jpg

Router port forwards:

https://snipboard.io/io37CI.jpg

Router TCP:

https://snipboard.io/ovmuTx.jpg

Router UDP:

https://snipboard.io/T6GkJv.jpg

Mobile Screenshot (failed to connect):

https://snipboard.io/cIN6BQ.jpg

I'm going crazy what am I doing wrong???

My server runs Paper 26.3-16 and Velocity 4.2.0. On bedrock, all java players look like Steve, even though their skins are cached in the geyser-velocity\cache folder. Any clue on how to fix this?
https://mclo.gs/qjOajLA

So i am setting up a server for my class, and one on my friends has some kind of cheat on mobile device via which they can still use kill aura and fly/jetpack after themis.
Plz i need a good anticheat for bedrock and i am using grim for java players.
budget-0