Get a copy of the Recommended Forge Universal jar version for whatever minecraft version your mods require ( ).Get a copy of a Minecraft-server.jar for whatever minecraft version your mods require ( or ).Have you tested your modpack in singleplayer yet? If so, move on to #2.
WARNING: Please note that running server software on your computer without a clear understanding of what you are doing may seriously harm your system and lead to vulnerabilities.
