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Hi,
I’m trying to run NoMachine in a docker container and to connect to it.My host is Ubuntu 22.04.5 LTS, container the same. Docker is 27.5.1-1. NoMachine in the container is 8.16.1-1 Workstation.
When I try to connect to NoMachine to a virtual display from a Windows 10, i get the following errors:
/usr/NX/var/log/nxserver.log:
…9989 9989 2025-03-05 21:29:03 642.806 NXSERVER Connected from remote machine ‘146.107.25.174’ using protocol ‘NX’.
Info: Handler started with pid 9989 on Wed Mar 5 21:29:03 2025.
Info: Handling connection from 146.107.25.174 port 42330 on Wed Mar 5 21:29:03 2025.
9989 9989 2025-03-05 21:29:11 713.663 NXSERVER WARNING! Process ‘/usr/NX/bin/nxexec –isadmin nomachine’ with pid ‘10020/10020’ finished with exit code 1 after 0,010 seconds.
9989 9989 2025-03-05 21:29:11 715.817 NXSERVER User ‘nomachine’ logged in from ‘146.107.25.174’ using authentication method NX-password.
9864 9864 21:29:11 820.337 Redis: 1 changes in 900 seconds. Saving….
9864 9864 2025-03-05 21:29:16 413.498 NXSERVER WARNING! Cannot retreive nxnode PID for virtual server FC0962656809D88FA46DC9A5EE70B169.
9989 9989 2025-03-05 21:29:16 414.192 NXSERVER ERROR! Cannot start node to create session
9864 9864 2025-03-05 21:29:16 414.897 NXSERVER WARNING! Process ‘/usr/NX/bin/nxexec –node –user nomachine –priority realtime –mode 0 –pid 49’ with pid ‘10026/10026’ finished with exit code 1 after 0,009 seconds.
Info: Connection from 146.107.25.174 port 42330 closed on Wed Mar 5 21:29:16 2025.
Info: Handler with pid 9989 terminated on Wed Mar 5 21:29:16 2025.
9989 9989 2025-03-05 21:29:16 441.400 NXSERVER Remote machine ‘146.107.25.174’ disconnected.
9989 9989 2025-03-05 21:29:16 441.761 HostDescriptorClose: WARNING! Descriptor FD#25 is invalid.
connection from the client says:
NX> 105 Listsession –status=”disconnected\054connected” –type=”all” –shadowable=”yes”
NX> 127 Session list of user ‘nomachine’:Display Type Session ID Services Depth Screensize Status Session name Username Platform Users Create Node
——- —- ———- ——– —– ———- —— ———— ——– ——– —– —— —-
NX> 148 Server capacity: not reached for user: nomachine
NX> 105 Setsession –type=”unix-xsession-default”
NX> 595 Server could not establish communication with local node.session:
Info: Starting NoMachine version 8.9.1.
Info: Loading settings from ‘D:\Users\bernd.lentes.SCIDOM\.nx\config\player.cfg’.
Info: Loaded translation files for ‘English’.
17608 20328 2025-03-05 22:29:04 171.455 Main: Creating the client session.
17608 20328 2025-03-05 22:29:04 171.455 ClientSession: Initializing session at 0x0000000003b13850.
17608 20328 2025-03-05 22:29:04 291.259 ClientSession: Initialized session at 0x0000000003b13850.
17608 20328 2025-03-05 22:29:04 294.260 ClientSession: Starting session at 0x0000000003b13850.
17608 20328 2025-03-05 22:29:04 297.261 ClientSession: Going to start session ‘D:\Users\bernd.lentes.SCIDOM\Documents\NoMachine\nomachine-desktop.nxs’.
17608 20328 2025-03-05 22:29:04 349.295 Connection: Initializing connection at 0x0000000006908900.
17608 20328 2025-03-05 22:29:04 354.431 Connection: Initialized connection at 0x0000000006908900.
17608 20328 2025-03-05 22:29:04 354.431 Connection: Starting connection at 0x0000000006908900.
17608 20328 2025-03-05 22:29:04 354.431 ClientDaemonConnector: Starting a new connection to host ‘bioinformatics-mcd-01.scidom.de’ on port ‘4020’.
17608 20328 2025-03-05 22:29:04 355.479 Connection: Started connection at 0x0000000006908900.
17608 20328 2025-03-05 22:29:04 367.489 ClientSession: Started session at 0x0000000003b13850.
Info: Connection to 146.107.25.27 port 4020 started at 22:29:04 369.488.
Info: Slave server running with pid 17652.
Info: Listening to slave connections on port 44520.
17608 20328 2025-03-05 22:29:04 377.616 Main: Entering the GUI event loop.
17608 12164 2025-03-05 22:29:05 223.555 ClientSession: A valid certificate for this server was found.
17608 836 2025-03-05 22:29:08 125.043 ClientUpnp: WARNING! Mapping of port ‘4365’ failed after ‘3834’ ms.
17608 20328 2025-03-05 22:29:13 138.856 ClientSession: Going to query the server for available services.
17608 20328 2025-03-05 22:29:17 748.888 ClientSession: Selecting the destination node.
17608 20328 2025-03-05 22:29:17 792.527 Connection: Connection at 0x0000000006908900 failed.
17608 20328 2025-03-05 22:29:17 792.527 ClientSession: Runnable at 0x0000000006908900 caused the session at 0x0000000003b13850 to fail.
17608 20328 2025-03-05 22:29:17 792.527 ClientSession: Failing reason is ‘The session negotiation failed.’.
17608 20328 2025-03-05 22:29:17 803.732 ClientSession: Stopping session at 0x0000000003b13850.
17608 20328 2025-03-05 22:29:17 806.735 ClientSession: Destroying display client.
Info: Connection to 146.107.25.27 port 4020 closed at 22:29:17 816.177.
Info: Slave server running with pid 2196.
Info: Listening to slave connections on port 58613.
17608 20328 2025-03-05 22:29:17 821.718 Connection: Stopping connection at 0x0000000006908900.
17608 20328 2025-03-05 22:29:17 821.718 ClientDaemonConnector: Stopping the current connection.
17608 20328 2025-03-05 22:29:17 821.718 Connection: Stopped connection at 0x0000000006908900.
17608 20328 2025-03-05 22:29:17 837.428 ClientSession: Stopped session at 0x0000000003b13850.
17608 20328 2025-03-05 22:29:17 837.428 Connection: Stop reading because of parser request.
Thanks for any help.
Bernd
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