Under Linux, deamons are simple background processes. No special control methods (e.g
stop()) are used as in Windows. Build your service as a simple (console) application, and run it in the background. Use a tool like
daemonize to run a program as a Unix daemon, and remember to specify
mono as the program to be activated.
As noted by others, mono-service is a host to run services built with the
ServiceProcess assembly. Services built for Windows can use this method to run unmodified under Linux. You can control the service by sending signals to the process (see man page).