I think there are 2 options available:
Install Telser from aminet as a telnetd so you can telnet from a remote machine to your Morphos machine.
(the keyfile for telser has also been uploaded to aminet.)
But I wouldn't use this option over the internet, since telnet is a plain text protocol with no security.
Another option is to install
VNC Server.
A third option could be installing a ssh server, but I don't know if that was released for Morphos.