Installing on Mac OS X - SimpleServer/SimpleServer GitHub Wiki

Make sure you have installed the Java Runtime Enviroment (JRE) properly. Mac computers are automatically up-to-date with JRE with Software Update. To check what version of Java is ENABLED on your Mac, Spotlight search "Java Preferences" and there is a box where you can change your preferred JRE version and whether or not to activate them, Java SE 6 should be on top, If not, drag it to the top. Alternatively, you can type in terminal: java -version
Download the latest Simple Server Wrapper package and unzip it where you like.
Before you run launch.command you will probably need to give it permission to execute. To do this, OPEN up Terminal and type: chmod +x {Drag your launch.command file here}, then press ENTER.
Run launch.command to start the server. During the first run, SimpleServer will issue some warnings about missing files. It will then proceed to create all the necessary configuration files and try to download the latest minecraft_server.jar automatically. If the download of minecraft_server.jar fails, you have to manually download it here and put it into the directory containing the SimpleServer.jar.
Now stop the server again by typing stop into the server console.
Open simpleserver.properties and adjust the values as needed. This is best done when the server is not running.
After restarting (by running launch.command), you can now connect to the server using your IP Address and the port indicated in simpleserver.properties/console! You may find your Internet IP Address via this site. If you are connected to the local network that your server is hosted on then you have to connect via 127.0.0.1:port or use localhost:port.
To explore and activate the different features Simple Server has to offer, read the page about Configuration.

If you want to run SimpleServer together with bukkit, read our Bukkit Guide