Minecraft wiki entry for VPS, associated text: xvfb-run -a '--server-args=-screen 0 1024x768x16' java -Dorg.lwjgl.opengl.Display.allowSoftwareOpenGL=true -Dorg.lwjgl.opengl.Display.noinput=true -jar /path/to/Tectonicus_v1.17.jar mode=cmd worldDir=/path/to/world signs=all outputDir=/path/to/output_dir minecraftJar=/path/to/downloaded/minecraft.jar force64BitNatives=true verbose=true numSamples=0