osx server with ssh tunneling does not work (no way to find command to run)

[Antoine Martin]

As reported ​here on the mailing list.

OSX runs of an "App" bundle, so winswitch is not on the path and connecting via ssh will not work as we try to exec "winswitch_stdio_socket"...

The only solution I can think of is to publish the path to the command that we should run as part of the mdns data.
There are going to be security considerations here however, as it makes it way too easy to run arbitrary commands as that user.