CIRC users may access the CIRC systems in two different ways: using command-line and/or using a graphical user interface (GUI). A GUI connection is used when you wish to visually interact with your jobs and can be done through the BlueHive 2 login node. New users may find a GUI interface easier than a command-line connection. To login to the CIRC machines, follow the steps below based on your operating system and according to the type of login you wish to use.

Connecting using the Command Line

  1. Connect to the VPN (if necessary)

  2. Open your terminal application (if necessary)

  3. At the prompt, type:


    and press enter or return.

  4. Enter your NetID password when prompted and press enter. A message will appear that indicates you have logged in successfully. You are now logged in to the BlueHive cluster.

    Note: You will not see anything appear as you type your password!

Connecting using a Graphical User Interface

A graphical user interface (GUI) allows users to interact with various software programs visually, such as Matlab or Mathematica. The tutorials below list instructions on how to install and use several GUI programs suggested for use on the CIRC machines.

The X2Go Client is free to download and works on any system. The CIRC recommends this method as it provides the fastest access to CIRC systems.

  1. Install X2Go using yum or apt-get

    Note: The X2Go download page includes instructions for various Linux distributions, including adding repositories (if necessary). Please refer to those instructions for more detailed steps.

  2. Launch X2Go from your windowing system or command line. You will be presented with a blank connection setup window. Enter a name for this connection, as the host name, and GNOME as the session (to use CIRC’s default environment).


  3. Adjust preferences in the Connection and Settings tab to your liking. You can increase quality by changing speed to LAN in the Connection tab, and edit the default window size in Settings.

  4. In the Settings tab, uncheck Client-side printing support.

  5. In the Shared Folders tab, uncheck `Use SSH port forwarding to tunnel file system connections through firewalls`, and make sure there are no shared folders listed.

  6. Click OK once you’re done configuring options.

  7. You can then double-click on the session you’ve created to connect to BlueHive.


To exit X2Go, simply close the window