Windows 10 Client unclean logout on Ubuntu Server

[cement_head]

Hello,

We have several users that connect to an Ubuntu machine (server) running NoMachine.  We’ve noticed that people that connect with Windows10 and Windows7 machines often simply close the client window – as opposed to logging out.  This results in the NoMachine server (Ubuntu 18.04) thinking that the client is still connected and further connections are impossible.  This state persists even after rebooting the Ubuntu machine.

Have I misconfigured a setting on the NoMachine server, or is there a way to prevent this persistent connection on the server-side when there is an abrupt disconnection?

TIA

[Britgirl]

It is possible to force the termination of a virtual desktop session, it’s also possible to show an extra dialog to the user when they click X to close the window.

# Set for how long the server has to keep alive virtual desktops in
# status disconnected. When the time is expired, the server will
# terminate virtual desktops if no user are connected there.
#
# 0: Virtual desktops in status disconnected are never terminated.
# This is the default.
#
# >0: Keep alive virtual desktops in status disconnected for this
# amount of seconds.
#
#DisconnectedSessionExpiry = “0”

To activate the dialog I mentioned please see, for example, the chapter on Activating the Disconnect/Terminate Dialog in the configuration guide for the product you are using. E.g, in Workstation it is in Chapter 11, section 4.

https://knowledgebase.nomachine.com/DT11R00174

[fra81]

that the client is still connected and further connections are impossible

This should not be happening at all. I don’t think the problem is about closing the client window, because this is the normal way to disconnect a session. In order to check what is actually the problem, you can gather the logs from the server as explained in https://knowledgebase.nomachine.com/AR10K00697 and send them to forum[at]nomachine.com.

[Author]

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