Setting up non-premium (cracked) server

Cracking the Minecraft

By default, Minecraft servers run in online mode. That means that only players which have purchased Minecraft (premium players) can join the server. Fortunately, we can change that!

Go to the File Management and open server.properties file.
Change online-mode=true to online-mode=false.
Save File and Restart server.

Now you can join your server with any username.

Securing user accounts

Because anyone can join the server with any username, players can steal each other's accounts. We don't want that! Especially not someone using our username and gaining full control over the server!

We can fix this by using one simple plugin. AuthMeReloaded.

Let's download AuthMeReloaded by clicking here.
Upload it in the plugins folder.

Restart server.

Players will now be prompted to register and login every time they join!

Adding back Skins

Running a cracked server means giving up Skins... Meaning all players will be Steves or Alexes. Horrible! However, there is a neat plugin called SkinsRestorer, which does exactly as the name suggest - it restores skins on cracked servers!

Download SkinsRestorer from its SpigotMC page, upload inside plugins folder and restart your server.

Now, you can use /skin PLAYER_NAME command (replacing PLAYER_NAME with some premium player's name) to obtain their skin as yours!!

Additionally, if a player's name matches those of a premium player, SkinsRestorer will automatically change their skin to premium player's which they share name with.