This is an instructable on how to make a Minecraft server. Again this is for Mac. (sorry windows) ;)
Let's get started!
Step 1: Folder
Make a folder on your desktop call it whatever you want.
Step 2: Download
Download the minecraft_server.jar Here and put it in the folder. Open it. A bunch of files will appear.
Step 3: Code
open textedit and type:
cd "$(dirname "$0")"
exec java -Xms2G -Xmx1G -jar minecraft_server.jar noggin
save the file and name it start.command . put it in the folder as well.
Step 4: Terminal
Open terminal. type in chmod a+x. DO NOT press enter. press space and then drag the start.command file into the terminal window. NOW press enter. notice in the second picture.
Step 5: Eula.txt
go on the eula.txt file in the folder change the false to true.
Step 6: Open Server
click again on the Minecraft_Server.jar. This time it will not quit.
Step 7: Go on Server
to go on the server, go on minecraft launcher and go on multiplayer and click on direct connect and type localhost.
Step 8: Multiplayer
To make other people able to play, tell the ip address and a random name.