Sweeping Up the Shavings
If you set up a home-based online Minecraft server for experimentation and/or educational purposes, then cool beans. Just be sure to take the proper steps to clean up your environment to maximize your online safety:
- Issue /stop in the Minecraft server console to halt the server and prevent it from listening for incoming connection requests.
- Log in to your router and disable your port-forwarding mapping when you no longer need it.
- Delete your No-IP mapping if you aren’t using it anymore.
In IT, the security principle of “least service” says that if you don’t need a service running on your network, turn it off and/or uninstall it. This way a malicious user can’t abuse or exploit the service, because it simply isn’t turned on in the first place.