Privilege of user account

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    How to disable a NX user to shutdown a computer. In my case when a user open a session xfce4,  It could shutdown the computer using the terminal. How can I avoid this isssue?

    After that, when my session goes on standby mode, the Xsreensaver give this message: Xscreensaver Authentification failed





    The first issue looks related to Xfce configuration.

    About the screensaver, please tell me the Linux distro in use.

    Is the Xfce session running on a NoMachine virtual desktop or on a physical display?


    I use Red Hat Linux (7.7). xfce4-session runing on NoMMachine terminal server Node. I have build a multi node. My broker turn on Nomachine Enterprise Terminal Server and my host turn with NoMachine Terminal Server Node. I use url web.



    NoMachine do not provide feature to block commands. You can do this by configuring sudoers file for example.

    About xscreenserver problem we are unable to reproduce the problem. Please check if changing DefaultDesktopCommand key value in /usr/NX/etc/node.cfg (on server side) from “/usr/bin/startxfce4” to “dbus-launch /usr/bin/startxfce4” will fix the problem. You need to have root permissions to change values in NoMachine configuration files.

    If this will not help some logs may be helpful. Please run command sudo grep xscreensaver /var/log/secure* and send us output to forum[at]nomachine[dot]com, referencing the topic as subject.

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