LTSM install

1. create user xvfb-ltsm
2. copy ltsm.manager.service.conf into dir: /etc/dbus-1/system.d
3. copy ltsm_service.service into dir: /etc/systemd/system and correct the parameter ExecStart=
4. copy ltsm_connector_vnc.socket and don't forget to open the port 5900
5. copy ltsm_connector_vnc@.service and correct the parameter ExecStart=
6. create dir: /etc/ltsm, copy config and check all parameters
7. systemctl daemon-reload; systelctl start ltsm_service.service; systemctl start ltsm_connector_vnc.socket
8. open journalctl and connect to the service

The start script is used for the user session.
It runs an icewm-session that is from the IceWM project, I recommend it.