FastX3 is now the primary version of FastX used on Engineering systems that support FastX including  As we progress though the summer, more system will be added to utilize FastX3 as the primary and FastX2 will be removed from these systems.  If you have an issue with using FastX2 on a system, please try connecting via FastX3 before contacting Engineering Computer Services.


FastX2 is a utility that allows for remote access cross-platform. Thus it can be run as a client or server on Windows, Linux, and Mac. Computers can be accessed via the installed FastX2 client, or by accessing the requested computer via

To download the FastX2 client, visit the ITS software download page (


The client is currently installed in the labs and the 1245 3231 classrooms. To connect remotely from off campus to a computer in engineering, you should download FastX2.


Windows or Macintosh

After you have downloaded the Windows or Macintosh version, start the setup wizard.  To proceed you have to accept the End-User License Agreement. By default FastX2 wants to install in the Program Files directory on the C:\ drive. You can change the installation directory or accept the default. The installer tells you that it is ready to install FastX2; you need to click the Install button. When the installation is complete, click the Finish button to exit the setup wizard.

Linux Installation:


Open a terminal window and run the command tar xvvfp FastX<tab>, as illustrated.   Linux is case sensitive, so enter this command as shown. The [tab] after entering FastX finds files that match "FastX", so if you have more than one file with FastX, you will need to select the correct file. Then execute the FastX file via the command FastX/FastX. FastX will then open to the connection management page.


Double click on the downloaded archive.

Drag and drop the folder within the archive to somewhere else to extract it. Once the files are extracted simply double click the FastX file to launch the program.

Once FastX is launched, it is completely identical between Linux, Windows, and Mac.

How to configure and use FastX:

Connection Manager:

Now that the client is on your local machine and you are at the connection manager window. Go ahead and click the plus sign in the top right, and select SSH. Below is an example on how to setup the SSH connection. For the Hostname, make sure to use Once that is filled out, click save.  Alternatively for GPU computing, use

Since this is your first time connecting, you will have to accept the unique fingerprint of the machine you are connecting to. Type yes to continue on this page.

After that you will be presented another management window. Click the plus button in the top right to add a connection. You will then be prompted to choose a desktop environment.

Connecting via Web-Browser:

Using the correct special URL you can run a FastX session in your web-browser, you do not need to install any special software. The URL is of the form: For example: (the current ETC supported systems are:


If you need help installing FastX, talk to the consultant at the Engineering Help Desk, 1256 SC, 319-335-5055.

Additional Information

Read the Usage Information on the Abaqus page if you are using FastX to run Abaqus.
FastX has replaced NX NoMachine.