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Using GDB to debug a core file on Linux

While investigating problems related to a sudden termination of the session, the Support Team could request to run the GDB debugger in the user's environment to examine what happened when the......

Id: AR09L00810 Applies to: NX Software

Added on: 2014-09-19 Last modified: 2015-10-09

How to gather debug logs for NX 3.5.0

This article applies to NX version 3.5.0.  To gather debug logs for NoMachine 4, please refer to: and for NoMachine 5:

Id: AR12I00100 Applies to: NX Software

Added on: 2011-12-13 Last modified: 2015-10-08

How to solve possible problems with the NoMachine automatic Software Updates

On some systems running the Poolkit tool (.e.g  RHEL 6) for defining and handling authorizations, users may experience problems when trying to upgrade NoMachine by using the automatic Software......

Id: AR10M00865 Applies to: NX Software

Added on: 2015-10-05 Last modified: 2015-10-08

How to use NoMachine 4 (free) on a headless Linux server

Important note for NoMachine 5: NoMachine v. 5 no longer requires to manually set-up the configuration described below: when the local X server cannot be found, NoMachine will use its own......

Id: AR10K00710 Applies to: NX Server Products

Added on: 2013-10-08 Last modified: 2015-10-03

How to upgrade from NoMachine server version 4.x to version 5.x and which package should be used

This article applies to the commercial versions of NoMachine server and refers to customer's packages available for download in their Customer Area.   To upgrade your NoMachine server......

Id: AR10M00864 Applies to: NX Server Products

Added on: 2015-10-02 Last modified: 2015-10-02

How to disable the automatic check for updates

Starting from version 4.6.3 all server installations, included NoMachine (free), have the automatic check for updates enabled. The related Feature Request is:

Id: AR05M00847 Applies to: NX Software

Added on: 2015-05-28 Last modified: 2015-09-30

How to activate licenses for NoMachine 5

Starting from NoMachine version 5 it's possible to activate the license also from the GUI.    To replace and activate the license from the GUI:  1)  Access the Server......

Id: AR07M00850 Applies to: NX Licensing

Added on: 2015-07-03 Last modified: 2015-09-30

How to enable the blanking of the remote physical screen when somebody is connected

This feature is available with NoMachine servers version 5 or later. When the screen blanking is active, the local user will see a black screen on the physical monitor while somebody is connected......

Id: AR07M00851 Applies to: NX Server Products

Added on: 2015-07-06 Last modified: 2015-09-30

Using NoMachine 5 or later to access unsupported unix-based systems (foreign nodes)

Starting from version 5, whichever Unix-like workstation or server with an X Window System (i.e. a graphical user interface based on X) can be integrated in a NoMachine multi-node environment......

Id: AR07M00849 Applies to: NX Software

Added on: 2015-07-02 Last modified: 2015-09-30

Building libx264 on the NoMachine server host (v. 5)

In order to enable H.264 codec in NoMachine it's necessary that you have a H.264 encoder on the server and a H.264 decoder on the client. On the client, follow the instructions here: https://......

Id: AR09M00863 Applies to: NX Software

Added on: 2015-09-25 Last modified: 2015-09-30

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