Unlike root and user, the ruser is not intended for real SSH sessions, but only for starting X applications.
And only those that are listed as allowed here on this setup page. By default in OS 10 these are localshell
and /config/sessions/setup0
.
But if you intuitively try to log on to the device as ruser via SSH, then you will never be able to connect. The connection will be closed immediately without anything happening.
In this case you must add the parameter "-X" and the program to be started in the session call, like in this example:
ssh -X ruser@192.168.10.203 localshell