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How to Host a Minecraft Server Without Port Forwarding

Set up a Minecraft server on your PC and let friends join without touching your router. Step-by-step guide using a TCP tunnel.

gamingtutorial

You want to play Minecraft with friends. You're running a server on your PC. The problem: your friends can't connect because your computer is behind a router and firewall.

The usual advice is "set up port forwarding." That means logging into your router, finding the NAT settings, creating forwarding rules, hoping your ISP gives you a public IP, and praying nothing breaks when your IP changes.

There's a much easier way.

What you need

  • A Minecraft server running on your PC (Java Edition, default port 25565)
  • Localport CLI installed (30-second install)
  • A free Localport account (sign up here)

Step 1: Start your Minecraft server

If you haven't already, download and run the Minecraft server:

java -Xmx2G -Xms1G -jar server.jar nogui

Make sure it's running and you can connect locally at localhost:25565.

Step 2: Start the tunnel

Open a new terminal window (keep the Minecraft server running) and run:

localport tunnel --token YOUR_TOKEN --local localhost:25565 --protocol tcp

You'll see:

Tunnel established. Forwarding:
  tcp → tcp://abc123.tunnel.localport.dev:47266

Step 3: Share with friends

Send your friends the address: abc123.tunnel.localport.dev:47266

They add it as a server in Minecraft:

1. Multiplayer → Add Server

2. Server Address: abc123.tunnel.localport.dev:47266

3. Done → Join

That's it. No port forwarding, no router changes, no static IP.

Keep both windows open

The tunnel only works while the CLI is running. Keep both the Minecraft server terminal and the Localport terminal open during your gaming session.

Tips for a smooth experience

  • Reserved ports (Pro plan) keep the same port across sessions, so you don't need to share a new address every time you restart.
  • Latency is minimal — Localport adds single-digit milliseconds, negligible for Minecraft.
  • Works behind any network — University dorms, corporate WiFi, mobile hotspots, ISPs with CGNAT. If you can browse the web, Localport works.

Works for other games too

GameDefault PortTunnel command
Minecraft (Java)25565--local localhost:25565 --protocol tcp
Valheim2456--local localhost:2456 --protocol tcp
Terraria7777--local localhost:7777 --protocol tcp
Factorio34197--local localhost:34197 --protocol tcp
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