CAEN Knowledge Base
CAEN Knowledge Base

How do I connect to the Linux Login Service using the CAEN VNC client?

Eligible CAEN Account holders have remote access to the CAEN Lab Software Environment (CLSE) for Linux via Virtual Network Computing (VNC). The CAEN-configured VNC client uses the graphical desktop sharing system, tunneled though SSH, to connect to the CAEN Linux Login Service and simulate the Linux environment in computer labs. The login servers are for interactive use only, and should not be used for CPU-intensive and/or background work. Refer to the policy on Appropriate Use of the Linux Login Service.


Using the VNC client on CAEN Lab Computers

On CAEN lab computers running Microsoft Windows, the VNC client is available to launch from the AppsAnywhere website.


Downloading the VNC client for Personal Computers

The CAEN VNC client is supported for the following operating systems:


Connecting with the CAEN VNC client using Duo Two-Factor Authentication

For Windows operating systems, extract the zip file, then double-click the caenvnc42.exe file. For Mac OS, extract the zip file, then double-click the file. A login window similar to the following will appear:

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Select the appropriate Hostname from the drop-down menu:

  • When connecting from an on-campus network (excluding U-M VPN networks), select:
  • When connecting from an off-campus network, select:

Enter your U-M uniqname as the Username, and enter your UMICH password.

The CAEN Linux Login Service requires the use of Duo two-factor authentication (2FA). All that is needed is to enroll a device. If you already have a Duo code from SMS message or security token, you can enter it into the Duo Choice field. Otherwise, leaving the field set to 1 will tell Duo to send a new code to your first enrolled device. Before clicking the Connect button, you can also select the size of the client window (the default Window - Large option will use 90% of the screen).

Note: After clicking the Connect button, you may receive a message similar to what is displayed below. You can disregard this warning, as all network traffic will be encrypted using an SSH connection:

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After clicking Continue, you should see a typical CAEN Linux login screen, similar to the following:

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Again, enter your U-M uniqname as the Username, and press Enter. Then enter your UMICH password, and click the Sign In button. Once the login process completes, your CAEN Linux desktop should appear.