A server on this computer
Run the panel on the machine that is to be the server. Everything below happens in Install and run.
Creating one
Press Create server and fill in a name in Latin letters, for example *home*. Beside it are the core version, the world name, the world type — ordinary, flat, large biomes or amplified — and the seed.
The world type and the seed are asked here, and only here, because the game reads them once, at the moment the world is made. After the first start it is too late to change them. An empty seed means a random world.
The version can be left for later — choose install later and pick it on Install and run when you are ready.
Attaching one you already have
Attach folder takes a server that is already on the disk. The panel works out the version, the type of core — Vanilla, Paper, Spigot, CraftBukkit, Forge or Fabric — and how much memory it was given, reading them from the old start script.
The core file itself is chosen on Install and run: in somebody else's build it is rarely called server.jar.
Install and run
- Choose the version — best the same one the players have.
- Press Download to fetch or update the core.
- Tick the Minecraft licence. Mojang does not allow a server to start without it.
- Raise the memory if you like. 2048 MB is enough for five to ten people.
- The Java options — garbage collector and the rest — are in the table below the memory: a tick, a value and a line saying what each one does. Show the start command displays what all of it adds up to.
Two more settings live here: automatic backups, every so many minutes and keeping so many copies, and restart on crash.
Starting
Press Start. The first start takes longer than the rest — the world is being generated.
At the top of the window is the address for players, something like 192.168.0.10, with a button to copy it. That is what the people on your network type in to join.
Next
The console and the list of players are in Console and players; the world itself in World and rules.