You’ll get a warning if you’re doing something you don’t have sufficient permissions for. Don’t overextend by spending more than mandatory, particularly if you’re simply experimenting with server hosting. You should deny ports like 80 and 443 when you don’t use the server for hosting web sites. You should utilize alternatives like CraftBukkit or Spigot that allow more customizations and plugins. We may publish a tutorial for CraftBukkit quickly if there’s an curiosity. Why is your Minecraft server tutorial so lengthy, and yet others are only 2 lines long? A-D. Even after you get out of the display screen session (detach), the server will keep operating. In this mode, monsters will come after you as soon as night falls. If you'd like to alter the sport mode, difficulty and stuff like that, you should use the server console. After you log in, make sure you secure your server. You possibly can safely log off your Ubuntu server now, and the Minecraft server you created will keep running.