CAEN Knowledge Base
CAEN Knowledge Base

Note: For updates from the College about resources for learning, teaching and working remotely due to the COVID-19 pandemic, visit: covid-19.engin.umich.edu


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

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 available for the following operating systems:

For Windows operating systems, extract the .zip file, then double-click the caenvnc42.exe file. For Mac computers, extract the zip file, then double-click the CAENVNC4.2.app file.

Note: While CAEN does not currently offer a VNC client for personal Linux computers, most Linux operating systems provide a way to connect natively. Refer to our article for How do I connect to the CAEN VNC servers from my personal Linux computer.

 

Connecting with the CAEN VNC Client for Personal Computers

After running the client, a login window similar to the following will appear:

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Enter your U-M uniqname as the Username, your UMICH Password, then select the appropriate Hostname from the drop-down menu:

  • When connecting from an on-campus network (excluding U-M VPN networks), select: oncampus-course.engin.umich.edu
  • When connecting from an off-campus network, select: login-course.engin.umich.edu

The Linux Login Service requires the use of Duo two-factor authentication (2FA). 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 select the Size of the client window (the default Window - Large option will use 90% of the screen).
  • 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 what is displayed on a CAEN lab computer:

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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.