| ["rmuser", user] => Main.requestRmuser user
| ["ping"] => OS.Process.exit (Main.requestPing ())
| ["slave-shutdown"] => Main.requestSlaveShutdown ()
| ["rmuser", user] => Main.requestRmuser user
| ["ping"] => OS.Process.exit (Main.requestPing ())
| ["slave-shutdown"] => Main.requestSlaveShutdown ()