If given the option, choose to save or download the file, do not open it.

Step 1: Download the Nx Witness Desktop Client and Server installation packages from my. or the Nx Cloud portal. The download and installation processes are the same for both Desktop and Server, and can be completed in any order. How to Download and Install Nx Witness VMS on Ubuntu: Click on Activities to search for Settings.Select the Overview tab to display your Ubuntu version, memory and processor information, and whether the OS type is 64-bit or 32-bit.Under the System section, click Details.To find out if your Ubuntu Linux operating system is 32-bit or 64 bit: For Ubuntu 16.04 LTS: Only the default 'Unity' desktop environment for Ubuntu 16.04 LTS and the default 'Gnome' desktop environment for Ubuntu 18.04 LTS are officially supported. Other graphics environments such as KDE, LXDE, and customer tweaks may cause the Desktop client not to work. You may need to enable NX or XD support in your bios.The Nx Witness Server and Desktop are supported on 16.04 LTS and 18.04 LTS releases, other derivatives of Ubuntu aren't supported (e.g., Elementary OS, Kubuntu, Lubuntu, etc.). Make sure you are using a supported version of Ubuntu before you begin the installation process. Solution On 32 bit systems install a kernel with PAE support, no installation is required on 64 bit systems: If necessary configure your bootloader to load the new kernel and reboot the system. Note: Ensure your system supports the XD or NX bit and has PAE support before implementing this recommendation as this may prevent it from booting if these are not supported by your hardware Rationale: Enabling any feature that can protect against buffer overflow attacks enhances the security of the system. Other processors, such as Itanium and POWER, have included such support since inception and the standard kernel for those platforms supports the feature. Extra steps must be taken to ensure that this protection is enabled, particularly on 32-bit x86 systems. This ability can help prevent exploitation of buffer overflow vulnerabilities and should be activated whenever possible.

Generically and on AMD processors, this ability is called No Execute (NX), while on Intel processors it is called Execute Disable (XD). Information Recent processors in the x86 family support the ability to prevent code execution on a per memory page basis.

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