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Guide

How to port forward Minecraft

A plain-English walkthrough for getting Minecraft Java traffic from your router to the actual server host.

Minecraft Java usually expects public traffic on port 25565. If Kordu Probe times out, the failure is often not the server software itself. The usual breakpoints are the router, the firewall, or the DNS target.

Checklist

  1. Confirm the Minecraft server is listening on the host you expect.
  2. Verify the router forwards external TCP 25565 to the correct internal IP.
  3. Confirm the server firewall allows inbound TCP 25565.
  4. Check that your DNS name resolves to the current public IP.

Why Probe helps

Kordu Probe gives you the outside-in answer first. If the result is closed, something reached the host and refused the port. If it is timeout, the traffic likely never completed the handshake, which usually points to filtering or a bad route.