I am using Minecraft 1.7.10 and am running a server using Thermos, a modification that allows me to use both Bukkit plugins and Forge Mods at the same time. My server runs generally perfectly, I can start it, I can connect to it, I can execute commands from in-game. However, while vanilla server comes with a nice UI itself, allowing me to see the console output and use console commands without actually entering the server myself, a Thermos server doesn't seem to. What can I do to fix it?
The easiest solution is probably setting up a .bat file to launch your server through it, following the official instruction.
To be short, you can create a text file using Notepad or Notepad++, changing its file extension to .bat, containing the following lines:
java -Xms512M -Xmx4096M -jar Thermos-1.7.10-1614-server.jar
Of course, if your Thermos file is called "Thermos-1.7.10-1614-server.jar". The "pause" thing allows you to have time to see the console output even if you stop your server or if it crashes (normally the command line window will disappear in this case).