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Released on:
Searching in: Software Updates
ID: SU07N00101
Released on:  2016-07-19
Last update: 2016-08-05
NoMachine 5.1.40 now available

Luxembourg, July 19th, 2016

NoMachine makes available today a minor software update delivering a number of enhancements and usability improvements, including the introduction of WebRTC support in its Cloud Server product, thus enabling video and audio streaming when connecting to NoMachine desktops using a WebRTC-enabled browser.

The implementation of WebRTC support in browser-based remote desktop sessions has initially been released as beta and must be enabled explicitly by the administrator by editing the cloud.cfg file. With the help of a STUN/TURN server for negotiating NAT traversal, peer-to-peer WebRTC communication can be established also when the web session has to be run behind a NAT.

Consult the following articles for further instructions:

How to configure web sessions to use WebRTC

How to setup your own STUN/TURN server for NAT traversal

The complete list of features implemented in 5.1.40 are:

FR03M02896 - Adding support for WebRTC to NoMachine web sessions
FR01N03004 - Supporting H.264 encoding for custom applications and virtual desktops in X11 vector graphics mode
FR03N03081 - Giving the possibility to use keyboard shortcuts during web sessions
FR02N03037 - Automatically switching to load-balancing mode when there are no nodes available for manual selection
FR03N03074 - Forwarding Kerberos tickets to nodes even when the user doesn't authenticate with Kerberos to NoMachine
FR04N03101 - Renaming the AgentLightweightMode configuration key to AgentX11VectorGraphics
FR04N03102 - Updating the 'lightweight' label in the server preferences GUI
FR04N03104 - Grouping NoMachine client windows in the Windows taskbar
FR05N03106 - Allow to configure the client to hide the main window when starting a floating window session
FR05N03112 - Letting users choose to connect to a remote node by load-balancing
FR06N03116 - Automatic switch to load-balancing mode for web sessions
FR06N03119 - Improving fullscreen on multi-monitors when Windows Managers don't fully support EWMH

This new version also provides fixes for issues affecting previous versions:

TR04L04386 - Keyboard does not work properly inside remote Parallels VM
TR02M04931 - Connecting to Windows Vista makes the MS help guide pop-up when the desktop owner has focus on a MS application
TR02N06413 - Zenkaku-Hankaku key does not work
TR02N06450 - Cannot connect to the server on Linux Mint after reboot when the user's folder is encrypted
TR02N06475 - Wrong keyboard layout set in web sessions
TR02N06521 - Microsoft Help Viewer opens randomly in a NoMachine sessions on Windows 7
TR03N06588 - Running 'service nxserver status' does not return the correct code
TR03N06589 - Possible crashes of the nxnode processes on Windows 7 with Korean system language
TR03N06603 - Virtual desktops are terminated in a multinode environment after a network outage
TR03N06628 - Copy&paste from Linux (RHEL 5 and 6) to Windows is unreliable
TR03N06657 - Cannot print on a local printer when SELinux is enabled on the remote host
TR03N06669 - The disconnect/terminate dialog box doesn't work properly in Fluxbox WM
TR04N06700 - Audio is always restored to the initial status when the session is disconnected
TR04N06709 - Graphics windows of R software are empty inside a NoMachine session
TR04N06726 - Cannot print from the NoMachine session to the local print
TR04N06736 - Virtual desktops are marked as failed when users are logged-out from the system
TR04N06776 - The Web Companion applet window doesn't close when clicking Exit
TR04N06810 - The NoMachine web server doesn't start after the upgrade from version 4.2.25 to 5.1.24
TR04N06812 - No images are displayed in Adxv running in a NoMachine virtual desktop
TR05N06818 - The client ignores the menu configuration requested by the server
TR05N06824 - NoMachine users and groups are not synchronized in a cluster
TR05N06826 - Setup doesn't check directory permissions correctly
TR05N06837 - Screen blanking doesn't work properly on Debian 8
TR05N06873 - Some license types cannot be activated using the 'nxserver -- activate' command
TR05N06882 - Cannot connect by HTTP proxy server if the server hostname is unresolvable
TR05N06889 - Sessions on the remote are terminated when the master server is shut down
TR05N06893 - The node name is only partially visible when 'list view' is selected in Chrome or IE
TR05N06901 - NoMachine cannot find the Xvnc server once it has been restarted
TR05N06903 - NoMachine server renews Kerberos tickets but not the AFS token
TR06N06907 - Runtime error during installation on Windows
TR06N06920 - Audio does not work during connection to Windows XP
TR06N06924 - Cannot connect by the web to NoMachine Cloud Server on Ubuntu 16.04
TR06N06937 - Some keys are ignored if set in a per-user node configuration file
TR06N06939 - The "z" letter in a French keyboard is mapped to "w" inside a web session
TR06N06950 - 'Last operation failed' is reported when adding a node
TR07M05840 - Drag and drop not working in Xcode
TR07N06991 - Rules set for a NoMachine group are ignored for Windows Domain accounts
TR10M06138 - Settings for the ClipboardBufferLimit configuration key are ignored
TR10M06158 - A sudden termination of the virtual desktop occurs with NoMachine server v. 4.6.x or v. 5
TR11M06246 - Cannot add a Windows host to the NoMachine multinode environment by using a domain user account
TR12L04742 - Cannot start a session when XDM indirect query is chosen
TR12M06322 - Horizontal scroll does not work
TR06N06976 - Limiting connections to the remote node by using profiles has no effect
TR07N07013 - Cannot install NoMachine AVC pack for Windows when the OS is in German
TR05N06884 - Password expiry is not always handled and user is prompted with a wrong dialog
TR07N07031 - Sudden termination of nxserver.bin process in a cluster environment while monitoring the cluster
TR03N06661 - Restricted mode in PhysicalDesktopMode is ignored when the connecting user is the desktop owner


Supported Platforms

Windows 32-bit/64-bit XP/Vista/7/8/8.1/10

Mac OS X Intel 64-bit 10.5/10.6/10.7/10.8/10.9/10.10/10.11

Linux 32-bit and 64-bit

Red Hat Enterprise 4/5/6/7
SLED 10.x/11.x
SLES 10/11/12
Open SUSE 10.x/11.x/12.x/13.x
Mandriva 2009/2010/2011
Fedora 10/11/12/13/14/15/16/17/18/19/20/21/22/23
Debian GNU Linux 4.0 Etch/5.0 Lenny/6.0 Squeeze/7.0 Wheezy/8.0 Jessie
Ubuntu 8.04 Hardy Heron/8.10 Intrepid Ibex/9.04 Jaunty Jackalope/
9.10 Karmic Koala/10.4 Lucid Lynx/10.10 Maverick Meerkat/11.04 Natty Narwhal/
11.10 Oneiric Ocelot/12.04 Precise Pangolin/12.10 Quantal Quetzal/13.04 Raring Ringtail/
13.10 Saucy Salamander/14.04 Trusty Tahr/14.10 Utopic Unicorn/15.04 Vivid Vervet/15.10 Wily Werewolf/16.04 Xenial Xerus


Important: Due to the changes introduced by Apple which has dropped support for 10.5 and 10.6 in recent compilers, NoMachine will discontinue support for those OS X versions in a future release. It will still be possible to request packages specifically built for 10.5 and 10.6 under the provisions of a support contract.

Download NoMachine Packages

You can download the latest packages suitable for your Operating System from the NoMachine Web site at the following URL:

Customers with valid subscriptions should log in to their customer area and download the "Update version".

Automatic updates

The automatic check for updates is scheduled to check our repositories every two days.

To update any of the NoMachine servers immediately:

- Run the NoMachine GUI from your Programs Menu.

- Click on 'Settings', then on the 'Server preferences' and finally on 'Updates'.

- Then click on the 'Check now' button.

To update the NoMachine Enterprise Client immediately:

- Click on 'Settings' and 'Updates'.

- Then click on the 'Check now' button.

More information about the check for automatic updates is available here:

Manual package update

Please follow the instructions to update your installation manually:

On Windows:

- Download and save the EXE file.
- Double click on the NoMachine executable file.
- As for the installation, the Setup Wizard will take you through all steps necessary for updating NoMachine.

On Mac OS X:

- Download and save the DMG file.
- Double-click on the Disk Image to open it and double-click on the NoMachine program icon.
- As for the installation, the Installer will take you through through all steps necessary for updating NoMachine.

On Linux:

You can use the graphical package manager provided by your Linux distribution or update NoMachine by command line by following instructions below.
If you don't have the sudo utility installed, log on as superuser ("root") and run the commands without sudo.


- Download and save the RPM file.
- Update your NoMachine installation by running:

# rpm -Uvh <pkgName>_<pkgVersion>_<arch>.rpm


- Download and save the DEB file.
- Update your NoMachine installation by running:

$ sudo dpkg -i <pkgName>_<pkgVersion>_<arch>.deb


- Download and save the TAR.GZ file.
- Update your NoMachine installation by running:

$ cd /usr
$ sudo tar xvzf <pkgName>_<pkgVersion>_<arch>.tar.gz
$ sudo /usr/NX/nxserver --update

If you are installing Enterprise Client or Node run respectively:

$ sudo /usr/NX/nxclient --update
$ sudo /usr/NX/nxnode --update



Installation and configuration guides for the NoMachine products are available at:


The NoMachine Development Team