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General ARCC Troubleshooting

Do I have to have a smartphone to use two-factor for ARCC services?

  • No, there are other options:
    • You can purchase a Yubikey from UWIT.
    • You can enroll any phone number or device on Duo
      • when logging into Teton using the landline method, type "<your password>,phone" and your enrolled number will get a call.

My UWyo user account is locked/disabled, can ARCC restore it so I can use the petaLibrary and/or Teton?


I am having trouble logging into Teton.

  • Can you log into other Uwyo resources?
    • if No, contact IT Helpdesk.
  • Is your 2nd factor authentication working? Test on https://wyosecure.uwyo.edu
  • There is a known issue on Teton that may affect your login. Wait until the top of an hour (e.g. 1 pm) and try again. We have an automatic process to fix this issue that runs every hour on the hour.
  • If you are still having problems email contact us.

How do I access Teton when I am not on the UWyo network?

  • Teton's login nodes are on the Science DMZ network outside of UWyo firewalls. Meaning you can log into Teton from anywhere as long as you have an internet connection and a terminal or ssh client.

How do I run my code on Teton?

  • You must submit your code to the job scheduler. Running code on login nodes is not permitted.
    • For more information about the job scheduler please see our page on Slurm.

How do I find out what modules/packages are available on Teton?

  • While logged into Teton, executing the command "module spider" will list all modules installed on Teton.
$ module spider
To learn more about a package execute:

$ module spider Foo

where "Foo" is the name of a module.

To find detailed information about a particular package you
must specify the version if there is more than one version:

$ module spider Foo/11.1

May I have sudo access on Teton?

  • Users will never have sudo access. Email arcc-help@uwyo.edu to request whatever would you need sudo access for.

My Teton home directory is full, can I get more space?

  • Rarely do we increase home directory space, please clean up any unnecessary files first. If the problem persists, Email arcc-help@uwyo.edu to describe your issue.


How do I access my petaLibrary allocation when I am not on the UWyo network

  • Users will need to use the UWwyo VPN to get onto the UWyo network.