How do I create a free minecraft server ?

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How to make a Minecraft server on Windows, Mac, or Linux

At a very high level, making a Minecraft server follows a few basic steps:

Install the latest version of Java
Install the latest version of the Minecraft server software
Configure your server & network
Start the server
Check that your server is accessible

Things to keep in mind before you start.

Setting up a server takes some effort. You need a bit of technical know-how to properly configure a Minecraft server.

You should have a basic understanding of computer and networking concepts, which are fundamental to managing any kind of server.

Specifically, you should be comfortable and familiar with:

Using the command line
Networking (IP, DHCP, ports)
Your system configuration
Your network configuration
Your router configuration (for home setups)