You’ll get a warning if you’re doing something you don’t have sufficient permissions for. Don’t overextend by spending greater than needed, particularly if you’re simply experimenting with server hosting. It's best to deny ports like 80 and 443 should you don’t use the server for internet hosting web sites. You need to use alternate options like CraftBukkit or Spigot that allow more customizations and plugins. We could publish a tutorial for CraftBukkit quickly if there’s an interest. Why is your Minecraft server tutorial so lengthy, and yet others are solely 2 lines long? A-D. Even after you get out of the screen session (detach), the server will keep working. On this mode, monsters will come after you as soon as evening falls. In order for you to alter the game mode, problem and stuff like that, you should utilize the server console. After you log in, ensure you secure your server. You may safely log off your Ubuntu server now, and the minecraft crafting recipes server you created will keep operating.