1) Here is Red Hat Server version info:
hostnamectl
Icon name: computer-server
Chassis: server
Machine ID: 20528fd92fc94cbaa12ee666df9bcacf
Boot ID: c419815d89274f3dbd0523ed7df0f2e6
Operating System: Red Hat Enterprise Linux
CPE OS Name: cpe:/o:redhat:enterprise_linux:7.6:GA:server
Kernel: Linux 3.10.0-957.el7.x86_64
Architecture: x86-64
2) I don’t recall, either I closed the terminal ssh sessions windows or deleted them… which removed them from NoMachine desktop
3) I cannot even open a terminal session window in No Machine or any other app, utils, etc… in NoMachine it just shows processing icon for a few seconds then stops. No window appears in NoMachine desktop its blank like the screen shot.
4) The Linux machine is remote, not sure if its headless and we don’t have access to the server box.