This is a setup guide for windows, I do not know if this will be different for linux. It is most definitely different for OS X. Read the MC wiki for information on how to setup a server for linux, mac, and a mod in-depth look at windows setup. Go into the FTB launcher and select the Technofirma mod pack. Press "download server" and let it install the necessary files. Run the server with launch.bat. MC will most likely shut down/stop. At this point, you must agree to MC's EULA and setup the server as you see fit. That is all.