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Guides

Step-by-step walkthroughs for self-hosting a Minecraft server, using Coalstack throughout.

Getting your server running

5 min read · Beginner

How to Import or Reset a Minecraft World (Java and Bedrock)

Replace your server's world with a downloaded or singleplayer one, or start over with a fresh seed, without losing the old world by accident. Java and Bedrock.

Read guide →6 min read · Intermediate

How to Link Several Minecraft Servers with Velocity

Put a Velocity proxy in front of your Paper or Purpur servers so players use one address for all of them. Step by step in Coalstack.

Read guide →6 min read · Beginner

How to Make a Minecraft Bedrock Server (2026)

Run your own Minecraft Bedrock Edition server on a PC you own, so friends on phones, consoles, and Windows can join. Setup, ports, and the allow-list explained.

Read guide →9 min read · Beginner

How to Make a Minecraft Server (2026)

A complete walkthrough for running your own Minecraft server on a PC you own: picking a platform, allocating RAM, letting friends connect, and keeping it alive.

Read guide →8 min read · Beginner

How to Set Up a Fabric Minecraft Server on Windows

A beginner-friendly walkthrough for hosting your own Fabric server on your PC: what Fabric is, how to create a server, install mods, and keep it running safely.

Read guide →10 min read · Intermediate

How to Set Up a Modded Minecraft Server (Forge & NeoForge) on Windows

Host your own modded Minecraft server on your own PC: pick a mod loader, create the server, install mods, and keep it backed up.

Read guide →

Connecting players and managing remotely

5 min read · Intermediate

How to Let Bedrock Players Join a Java Server (Geyser Crossplay)

Use Geyser and Floodgate so phone, console and Windows Bedrock players can join your Paper, Purpur or Spigot server, with no Java account. One tab in Coalstack.

Read guide →8 min read · Intermediate

How to Set Up a Custom Domain with Dynamic DNS

Give players a domain name instead of an IP, and keep it pointed at your server when your home IP changes. Covers DuckDNS (free) and Cloudflare.

Read guide →7 min read · Intermediate

How to Set Up Port Forwarding for Your Minecraft Server

Friends outside your network can't join your server? Forward the right port with Coalstack's uPnP tool or a manual router setup so they can connect.

Read guide →

Troubleshooting

8 min read · Intermediate

Fixing a Server That Won't Start After Installing Mods

You installed a few mods, hit Start, and the server immediately crashes. Here is how to figure out which mod is the problem and get the server running again.

Read guide →5 min read · Beginner

Fixing Java Version Mismatches

Server says 'A JNI error has occurred' or 'class file has wrong version'? Match the right Java version to your server and fix it for good.

Read guide →4 min read · Beginner

Fixing 'Port Already in Use' Errors

Your server refuses to start and the log says the port is already in use. Here is how to find what is using it, free it up, and prevent it from happening again.

Read guide →

Still stuck?

If a guide didn't get you over the line, we're happy to help directly.

help@coalstack.net

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