Hi, today I'll be showing you how to make a Minecraft server.
Step 1
Download the server JAR file for the Minecraft version you want.
https://www.MCVersions.net
Step 2
Run the file by executing java -jar -XmsINITMEMORY -XmxMAXMEMORY FILENAME.jar nogui (e.g. java -jar -Xms512M -Xmx2048M server.jar nogui)
If you don't have JVM installed, you can download it here
Step 3
Open the eula.txt file with your favorite text editor and change eula=false to eula=true and run the server file.
You can now edit the server.properties file to adjust things like monster spawning or the default gamemode.
Step 4
Now people in your local network should be able to join your game (unless a firewall is blocking incoming signals).
If you want to play with people outside your local network you have to open the 25565 port in your router.
Port Forwarding Guide
//NOTE: You can also rent a server from MCProHosting or any other server hosting service.
I hope this post helped you, if you have any questions, feel free to ask!