When making a minecraft severs, you need to install Java and the 32 bit or 64 bit server file. After the download, haul the 'Minecraft server folder onto your desktop. Visit the port forward link and get your router model. Turn off your computers firewall and Antivirus and then run the 2server.bat or 64server.bat. Learn more from http://www.minecraftforum.net/topic/168-how-to-set-up-a-minecraft-server/.